The vacuum sealed cervix

A multiplace hyperbaric chamber


Flight attendants and vacuum sealed diaphragms: I first noticed the dome of my diaphragm under significant vacuum when I inserted my Reflexions in Tahoe (at an elevation of more than 6,200 feet) for dive-sex last summer. It was such an amazing feeling that developed as the dome suctioned tighter against my cervix and anterior wall as Limnaea, my G550, was descending to land at McCarran at an elevation of about 2,200 feet! I love the feeling of pressure as the latex membrane stretches over the tip of my cervix. It’s rather like the pressure on my toes in my toe pads when I walk or stand en pointe.

Now, we are beginning to see a few flight attendants’ coming in to be fitted for latex diaphragms as the word spreads about the eroticism of wearing one with a pressurized dome. Most admit wanting latex because of the experiences of friends, but a second reason is that a Latex flat spring diaphragm is the safest for use as ‘flood insurance’ during dive-sex which flight attendants have discovered and are scheduling private classes during layovers. The flight attendants reasons are reversed from the escorts for whom a latex FS is a standard part of their equipment when with a dive-sex client. But then most escorts haven’t had experience vacuum sealing the dome of a diaphragm during a flight. Unfortunately only about 40% of the women who have come to us wanting to learn how to vacuum seal the dome of their diaphragms have the proper pelvic anatomy to do so.

There are several caveats for women wanting a high vacuum in the dome of a latex FS diaphragm. First she mustn’t be allergic to latex. While that seems obvious some women want to try anyway which is not a good idea! Second as mentioned above she must have the proper pelvic anatomy. Some women, because of their vaginal rugae (the folds in the walls that allow the vagina to expand when aroused and during childbirth) are unable to develop a strong vacuum in the dome. The dome will seal effectively enough for contraception when used with spermicide, but won’t develop a significant vacuum in the dome which allows it to adhere to the cervix and anterior wall as tightly as a coat of paint. For the lucky women the thin latex dome will stretch under pressure to develop a high vacuum and a nearly perfect fit. However, a few of them find they can’t stand the pressure on the cervix and don’t pressurize. Because the domes of silicone diaphragms are stiffer and less stretchy under vacuum even I find a silicone dome under strong vacuum puts too much pressure on the tip of my cervix for me to stand it for more than a few minutes and that much pressure can also cause the cervix to bleed.

Returning readers will remember there are some other disadvantages of latex diaphragms: they don’t last nearly as long, discolor quicker, tend to develop an odor sooner and may contribute to infections more than silicone ones. Still, for those of us into dive-sex or wanting a vacuum in the dome the latex Reflexions is a must.

The dome vacuum: For a woman whose anatomy allows developing a high dome vacuum, inserting a tight sealing cervical barrier while in an aircraft at altitude with a typical cabin pressure of 8,000 feet, allows the dome to be under a vacuum of several pounds per square inch at ground level. I can get somewhat the same result by ‘pumping down’ as I described in my March 31, 2012 post, ‘Ballet-sex exams, dome suction’, but it doesn’t approach the seal developed with a 2 to 3 psi dome vacuum. Some examples of the strong dome vacuums that can theoretically be obtained locally are:

Las Vegas atmospheric pressure at 2028 feet above sea level say 13.7 psi (2,000 ft)..

Lake Tahoe atmospheric pressure at average surface elevation 6225 feet above sea level, say 11.8 psi (6,000 ft).

Typical passenger plane cabin pressure kept at the equivalent of 8,000 ft, 10.9 psi.

Differences in air pressure Vegas from Tahoe = 13.7 psi minus 11.8 psi = +1.9 psi.

Differences in air pressure Vegas from typical pressurized passenger plane = 13.7 psi minus 10.9 psi = 2.8 psi.

Adolph’s Multiplace Hyperbaric Chamber: There are several local multiplace hyperbaric chambers, but they are all associated with medical facilities open to the public. Given the size of his fetish-diver training facility and the pressure related problems he has encountered with students, primarily women, sent to him for training he has recently had a six bed hyperbaric chamber added to the private hospital he funds for fetish related injuries here in the valley since a lot of the patients are from his training facility. A nice thing is that there is direct access through a tunnel from ‘The Well’, his 216 ft deep underwater training facility, to the admitting area at the hyperbaric chamber.

Until Adolph’s hyperbaric chamber became available there has been no convenient way to tell for sure if a woman being fitted for a latex FS diaphragm could successfully pressurize the dome and if the seal will hold or not, unless she (accompanied by her fitter) was taken up in a small unpressurized plane to 6,000 feet to insert and that was very expensive and could take several hours for the drive to and from the airport and the short flight. Now for groups of as many as six – who have been prescreened for suitability - the dome vacuums can be tested before the woman actually buys the diaphragm. It’s still an expensive test, but it’s worthwhile for a flight attendant desiring to high-vac her dome, a few wealthy women who fly a lot and for medical personnel having access to a multiplace hyperbaric chamber. And of course high-vac diaphragm fittings and tests are now available for guests at The Lorelei, Adolph’s European style spa, yet another profitable revenue stream for an already successful operation.

A dildo pregnancy

Pyrex glass dildo 24kt Gold Twist Love Baton


The Photo: shows a Pyrex dildo 7 inches in length and 1 1/4 inches in diameter similar to the one used to accidentally inseminate an 18 y/o student in the early session Summer Ballet Intensive course she is taking at St Lucy’s.

Stonehenge - the 2012 Summer Solstice: I missed the Stonehenge celebration this year. Sigh! I had every intention of going, but the accidental pregnancy mentioned above involved the daughter of an occasional lover and that kept me in town to make sure it was terminated and she is ok.

Insemination: The student, ‘Emily’, managed to inseminate herself several weeks ago in Contemporary Sexual health class during the Q & A after my demonstration of the difference in depth of the aroused vagina when penetrated in missionary vs. rear-entry while bent over.

My vaginal depth measurements when fully aroused are: introitus to anterior fornix about 6.75” and introitus to posterior fornix about 7.75” when I’m lying on my back. When I’m measured penetrated doggie style I’m about .75” deeper: introitus to anterior fornix about 7.25” and introitus to posterior fornix about 8.25”. I wear a 26 mm Oves cervical cap the rim of which forms a tight seal on the base of my cervix so I can comfortably take a penis thrusting into my posterior fornix which will stretch another half inch or so during maximum thrusting.

I was demonstrating with a male escort as my assistant and it was as I was cleaning up after he had entered me unprotected and filled me with semen while the students were all asking questions. As I Kegeled out his load I kept being asked over and over what it felt like to be penetrated that deeply and wasn’t I worried about letting him come in me w/o a condom. I explained that we were both tested frequently for STIs and I was wearing an Oves cap so I was quite safe. It seems Emily thought (so she said later) I was lying and that my partner had been clipped so he was sterile.

My partner had used the dildo to measure my depth while in missionary and then again while I was still bent over after he had filled me with semen, so the dildo was coated with his ejaculate when he placed it in a shallow instrument tray on the table around which the students were gathered to watch me be measured and inseminated. While I was distracted answering questions Emily took the semen covered dildo and inserted it in her vagina. The students were wearing thong-bottom leotards so the handle and several inches of the shaft sticking out were obvious when a student in front of her stepped to one side. When I saw what she had done I told her to remove it and put it back in the instrument tray which she did. I talked to her after class and since she was on Yaz and taking her pills correctly no one thought anything more about it.

Testing positive: Everyone forgot about it that is until Emily tested positive during the routine pregnancy test that all students are given if they are taking dive-sex instruction because we don’t allow pregnant women to breathe compressed gas as the increased pressure and intense pelvic activity during dive-sex can cause a miscarriage or nausea can cause the woman to vomit in her mask while underwater.

It turned out that she had been taking her pills correctly, but had told no one that she had just started taking an anti-seizure medicine, to protect against a form of epilepsy and it wasn’t on the copy of her medical records we were sent. The anti-seizure med interfered with her metabolizing the contraceptive hormones making her birth control pills much less effective. The chances that she was fertile during the demonstration, had inserted a dildo covered with fresh semen and the fertilized egg implanted would be pretty long odds, but stuff happens.

She wanted a quick termination. Fortunately she is 18 and her father, a single dad (a Hollywood A-list hunk and one of my occasional-lovers), was understanding and signed the release forms. I went with her yesterday and sat with her while she had a vacuum aspiration that sucked out the reproductive tissue. The procedure went well; she was given ten days of antibiotics and told not to have sex for a week. She would probably be fine if she used an FC2 so we will see. Today she is feeling a bit crampy but 800 mg of Ibuprofen took care of that and she is participating in all the classes with no mental baggage from the experience, at least so far. She says she plans to transfer from UCLA to UNLV in the Fall.

Lessons learned: From now on after use all semen covered devices and toys used in demonstrations where students can touch them will be placed in a deep pan of sterilization solution to prevent any possibility of accidental insemination.

Pointe Shoe quiz June 3, 2012

Who is the maker of these shoes?

Counterfeit DiveGel, Spring Break pregnancies, Girl-girl dive-sex

Extreme uterine cramping


Adulterated intimate lube: Our clinic is seeing cases of severe uterine contractions and bleeding from the use of counterfeit DiveGel that has been laced with a high dose of Misoprostol (Cytotec). The counterfeit product is available on the black market because DiveGel+ (a product of Labia Labs) is only available to professional escorts working for our casinos and for training purposes for a few select student groups.

The poisoned gel is packaged in 10 ml disposable applicators that look very similar to DiveGel and it takes about 25 minutes after vaginal application for a sufficient quantity of Misoprostol to be absorbed in the woman’s bloodstream to bring on uterine cramping and bleeding. That’s just long enough time for her to lube up, put on her scuba gear and be penetrated in an underwater tryst at the bottom of a swimming pool.

The targets appear to be the several groups of collage age women freelancing now that school is ending for the summer, the weather is warm enough to use outside pools and as the interest in dive-sex continue to increase. There have been two near drowning, one 19 y/o diver drowned on the bottom of a foreclosed mansions swimming pool in her own vomit filled FFM tethered to the bottom while masturbating solo and an 18 y/o bled to death after she was pulled out of a pool in addition to the eight or so who were just sickened and managed to get to the surface safely before becoming incapacitated.

It’s not clear who is responsible for distribution of the poisoned counterfeit gel, but it certainly makes the women’s jobs more dangerous as they need to use Vaseline petroleum jelly which washes away quicker than a silicone gel and can quickly destroy both latex and silicone cervical barriers used by the girls for ‘flood insurance’.

Teens with mom’s diaphragms: As the interest in diaphragms continues to increase for reproductive tract protection during underwater sex we are beginning to see instances of teen pregnancies from ‘borrowing’ their mother’s diaphragms during Spring Break. Fortunately most of the adult’s diaphragms are too large to fit comfortably for much of that to happen, but there have been a few, with tiny moms and a large father where the mom’s D is too small for her daughter. Without being properly fitted inexperienced girls covertly wearing cervical barriers often feel so confident they forget to take their birth control pills and she conceives. If the girl is 16 or older we keep her situation private. The moms who find out are in shock when they find the spare Omniflex was in her daughter’s vagina 15 feet below the surface of a pool in Baja California during the encounter from which she got preggers. The girls who come to our clinic after finding themselves in this situation elect to have a vacuum aspiration rather than take Mifeprex because it is much faster and less likely to cause serious side effects.

Fitting barriers at The Lorelei: Adolph’s spa, The Lorelei, attracts a lot of perimenopausal and menopausal guests as well as women of reproductive age and most of them want to experience underwater sex with one of the spa’s ‘Young Gods’ available as Service Masters, though they will switch and be either Dom or Sub depending on the guests requirements. Most of the guests are European and enjoy kinky sex though not of the type that will mark their bodies since they are all socially prominent and are often seen in revealing gowns or bikinis. Most of the older women have vaginas as well toned as any twenty-something Towel-Girl at Splash and most use Pyrex glass training balls daily as part of their beauty regimen.

For the Guests with deep post-pubic vaults who are not sensitive to latex I fit them with Reflexions flat spring diaphragms which are almost impossible for a partner to under-thrust. For women with a latex allergy or a shallow post-pubic vault I fit them with FemCaps. Since I am fitting them with gas-guards for ‘flood insurance’ (to prevent having pool water forced into the uterus by the hydraulics of a partner’s thrusting if the vagina floods) they only need to keep the cervix protected during the time they are underwater (less than an hour at a time) not for the six hours that it takes to ensure sperm is dead when used for contraception. So it doesn’t matter if the fit isn’t perfect if it will stay in place comfortably for more than an hour. Women with IUDs are taught to use DiveGel in the dome of their Reflexions or FemCap to prevent the strings of the IUD sticking to the barrier and pulling the IUD out when the barrier is removed.

The Well and Bottom debris: Last week it was time for the semi-annual cleaning of the bottom of ‘The Well’, Adolph’s 200 ft. deep training facility. Since Taryn started classes at Cambridge Cyndi has been helping me clean the debris off the bottom and it’s a treat for us both diving to the bottom at 216 feet and breathing Trimix while having sex with Adolph with a pair of HP steel 130 tanks strapped to our backs. Well, the treat isn’t having sex with Adolph, he can be a bit rough and no woman friend of mine should ever dive alone with him as so many accidents seem to occur to lone female divers in Adolph’s company.

The fun part is getting to have girl-girl sex with Cyndi at that depth and to see what items have littered the bottom of the training facility since we last cleaned it. The litter on the bottom is primarily birth control devices or vaginal toys; crushed shallow-water vibrators, Pyrex dildos, training balls etc. This time the contraceptive devices littering the bottom were: ParaGard (4) and Mirena (1) IUDs, NuvaRing (3). Diaphragms: Reflexions flat spring (2), All-Flex (6), Semina coil spring (2), Milex Omniflex (8), FemCap (3) Prentif (1). Training ball sets: Glass (4) and steel (3). Menstrual protection: Instead (3), Diva Cup (1), and the FC2 condoms (7). There were also disposable counterfeit DiveGel applicators most empty, but some still full and crushed by the water pressure. That’s another way to tell if the DiveGel is counterfeit, the applicator will be crushed below 60 feet, not a depth at which many users have dive-sex.

The reason these items litter the bottom of his training facility is that Adolph surprises his partner’s by removing their protection after reaching encounter depth before having sex with them, which routinely results in at least one pregnancy every few months in the group of (mainly European) women he trains. There were no Oves Caps, but as far as I know Oves hasn’t been generally available in at least six years and I’m the only one using it. I was surprised to see someone had lost her 22 mm Prentif, there are very few women using a Prentif any more since they stopped making them years ago. The three sets of ¾” chrome steel training balls lost almost certainly means he had several of my escorts or St Lucy’s students or staff in The Well, because no one else is using ¾” training ball sets right now. I suspect it was a St Lucy’s Professor (Miss M) the only woman his age he is romantically interested in and whose repudiation for loving rough sex is common knowledge on campus

Girl-girl dive-sex sex with Cindi: The girl-girl sex came after we had gathered the debris off the bottom with hand held fish nets which sped things up considerably so we had plenty of bottom time left for sex as we had pre-positioned oxygen tanks at 30 feet to help speed decompression. We were both in thong bikinis and I took Cyndi first with her tethered to the bottom with her legs spread held in place by ankle leashes. We both inserted another 10 ml applicator of DiveGel+ as Adolph had fucked us both and we were then full of his semen rather than DiveGel. DiveGel+ contains a powerful biocidal agent, so after handling other women’s contraceptive devices (even though we had worn gloves for the bottom cleanup and afterward removed them) it was another layer of protection to minimize the possibility of getting an STI from fingering one another. Wearing twin 130 HP steel tanks the only way either of us could be approached was from the front which wasn’t a problem since getting finger-fucked doesn’t require max depth or even being fully aroused. We both wore latex flat spring diaphragms and had our nails trimmed very short so when we caressed each other’s G-spots though the protective latex membrane we wouldn’t puncture the dome. Cyndi and I had had several underwater encounters in my pool so we were familiar with each other’s bodies, knew what to expect and how to turn each other on. The cool thing for us both was the depth since Cyndi had never had sex below 200 feet before and I was the first to give her a girl-girl encounter that deep.

I pushed aside the fabric of her thong, spread her labia and inserted my first two fingers and could tell she was already aroused because her nipples were erect her clit engorged and I couldn’t feel her cervix which I can before she becomes aroused. With the pad of my muddle finger I caressed the engorged area of her G-spot through the latex membrane of her protection and watched the increase in her respiration and the tension in her body as she approached orgasm. I listened to he hiss of her demand valve as she sucked air and the roar of her bubbles as she exhaled and felt her rings of muscles surrounding her vaginal barrel began to spasm tightening around my fingers and her entire body started to quiver as she began to gasp and moan over the comm. Link. I could see the sweat running down her forehead and was grateful for the design of our FFMs that directed part of each breath against the masks lens to prevent fogging. When she came her muscles clamped down on my fingers and ground my knuckles together painfully, so I had some Idea what it must feel like for a man who his shaft buried as deep as he can planting his seed when she reaches climax and clamps down milking the last drops of semen out of him. We took five minutes after she orgasmed for her to enjoy the afterglow.

Then it was my turn. She tethered me with the ankle leashes then fingered me to orgasm. I had thought I would try not to clamp down so tight on her fingers when I came, but she is so skilled with her fingers that I was gasping, mewing, moaning and sweating and so completely involved in my own orgasm that I forgot all about trying to be gentle and I clamped down every bit as hard as she had while my mind was centered on that magic spot on my anterior vaginal wall. It had taken 35 minutes (not including the 5 minutes each to enjoy the afterglow) to get us both off and we were about 5 minutes late starting for the surface, but we spent a bit longer at 30 feet after switching to oxygen and came up only 10 minutes over the safe intervals our dive computers had calculated. It was a great dive!

Jill’s World’s 3rd birthday

Today is my blog's 3rd birthday


Thank you Eric for recommending BlogSpot!

Pointe shoe quiz may 30, 2012

Who is the maker of this dancer’s shoes?


Thanks to Paul D for pointing out the link in the original post went to a members-only site so some readers might not have been able to participate in the quiz. Thanks too to Paul D for the link to the original source.

Pointe shoe quiz May 13, 2012

Who is the maker of these shoes?

This should be an easy one.