Abi, Cervical encasement, Multi-tasking and Dry SCUBA

Abi, Las Vegas Bay Lake Mead

Abi: Returning readers will remember Abigail (Abi) the 24 y/o German with auburn hair who was hired to teach an underwater bondage course at Splash and ended up as the resident Domme in charge of the Towel-Girls. She has a very high student accident rate in her classes and had another near fatality during a training session at Lake Mead when a towel-girl trainee had a buoyancy device failure at the end of her class. The students were starting their ascent when the girl punctured the bladder of her BCD on a jagged piece of metal on the wreck she was swimming around and couldn’t get off the bottom. She panicked and couldn’t drop her weights. They were using single AL 80 tanks with buoyancy characteristics of Full = -1.4lbs and Empty = 3.4lbs and the TG was wearing a 5 mm neoprene suit so she should have popped to the surface if she had dropped her weight belt. Abi had let the class stay down way past their safety margin so the chick with the torn BCD was nearly out of gas and Gigi who was in the group had to unbuckle her weights for her and buddy her to the surface. Abi looks almost angelic with a lovely face and gorgeous figure [see the image accompanying this entry] even when it isn’t being shown off encased in tight rubber. But I’m beginning to wonder if she isn’t a sociopath because of the number of ‘accidents’ and the fact that she seems not to care. A typical comment is, “well, perhaps she (the victim) will listen when I tell her what to do and practice beforehand next time”. Adolph does expect her to deliver some injured TGs that he can ‘mentor’ for his own purposes and the way she conducts her training is a very efficient way of doing that by sorting out the girls who aren’t paying attention which makes them ideal for Adolph’s needs.

Cervical encasement: As a tightly focused advertising campaign (to escorts and rubber encasement fetish groups) Gepettos spin on cervical barriers as ‘Cervical Encasement Suits’ seemed a bit of a stretch to me, but there is enough truth to it to make it fascinating to men and women who are deeply into rubber encasement but wouldn’t have used a diaphragm or cervical cap for birth control. However, the campaign has been so successful in portraying cervical barriers as ‘encasing the most feminine part of a woman’s body’ that there has been a rush to get fitted for a diaphragm and a FemCap. It’s recommended a woman have both so her cervix can be safely encased even during her menses with a FemCap (fitted by a Gyn) as her primary cervical encasement device. So in addition to the surge in cervical barriers used for gas guards for dive-sex cervical barriers are now must-have parts of a rubber-chick’s encasement costume.

The publicity is a highly polished up-market version of the fetish interest in ‘vaginal rubber’ that I mentioned in my entry for January 25, 2010, ‘Upper repro tract protection for rubber-chicks’, and is keyed to the must-have mentality that so many of the young rubber-chicks and stallions have. The luster dimmed appreciably on $3.000 ‘must-have’ handbags and that sort of thing in 2008 when the economy went into free fall, but cervical barriers never lost their niche market for professional girls who offer dive-sex as a specialty and so had a real need for protection as well as rubber-chicks and their Doms in the fetish community who wanted the feel of thrusting into a stretchy rubber membrane and a certain amount of cervical thrust buffering. But it’s the ‘all-rubber-all-the-time’ aspect of cervical protection that has caught fire in the imaginations of the target audience and has driven sales for the last several months. As I mentioned cervical barriers, however popular are a niche market product so market saturation should be coming in the next few months unless Madison Avenue can come up with a new hook to increase the size of the market.

Multi-tasking: I’ve written before [see my entry for April 4, 2010] about breathing pure oxygen to accelerate purging nitrogen from my body so I can dive more frequently or for longer intervals. And that’s what I’ve been doing today while I do pointe maintenance; trimming off loose threads, checking ribbons and elastics to see of they need re-sewing and re-hardening the blocks of my traditionally made Freed Classics. While I’m doing pointe maintenance I often straddle one of my Sybian machines and put it on slow to masturbate, but today I inserted a pleasure plug (a Penetrator with a vibi egg against my g-spot) and am masturbating with the most delicious tiny orgasms. I love being able to multi-task that way.

Dry SCUBA: For penetrative sex – with a man - while on pure oxygen I set a single HP 130 beside the bed and wear a FFM while I’m being drilled. That way I get to hear the hiss of gas being sucked through the demand valve and smell the rubber of the mask while I watch the long thick shaft of a superbly equipped stallion moving in and out of me. Figuring my SAC at 2.0 cuft (which is high) x 5 minutes = 10 cuft divided into the tank capacity 130 cuft = 13x5 = 65 minutes of gas at 1 ATA if I was in orgasm the entire time. There is no man alive who can perform continuously for an hour or more so I have plenty of gas before I have to worry about sucking the tank dry. Because I’m breathing 100% oxygen there is a danger of fire but all consumer electronics are kept out of the room except the ones in waterproof (airtight) cases so no spark can set off a flash fire. This way I can continue my vaginal training with my duty stallion while I’m out-gassing. The only way dry SCUBA could be harmful is if the woman is tied to the bed or disabled in some other way so she can’t get the mask off if she runs out of air.

Lesbians and dive-asphyxia training

A Femme’s last breath after air is denied

Lesbians and dive-asphyxia training: Rarely will a lesbian student couple want to take a dive-asphyxia course, but I have a student couple in training now. They are in my Advanced Sexual Techniques course at St Lucy’s and are fascinated by techniques that heighten a dive-sex experience. Lesbian training begins by having the woman fitted for a full face mask, gas guard and a strap-on. You don’t hear a lot about sizing a strap-on, but it is a very important part of the process of kitting a student out. Having it correctly sized for her anatomy lessens the likelihood that rough thrusting will rupture her uterus. Training strap-ons are made of rigid silicone with a softer replaceable tip to protect the cervix of the women it is being used on. And a FemCap is the gas guard of choice because it provides more thrust buffering of the strap-on for the Femme’s cervix than a diaphragm.

Pointe training: A requirement of asphyxia students is that they have had a minimum of 4 years of pointe training. Prior pointe training as a requirement is generally thought to be used to decrease the number of student applications by selecting out the women who aren’t in the best physical condition, however that’s not entirely true. The need for pointe is because an asphyxia student is first trained by being penetrated on her toes in a ballet studio while wearing her FFM to build up her stamina. All asphyxia students are fitted with Gaynor Minden pointes because with the internally padded polymer toe boxes and pre-arched polymer shanks Gaynors can be precision fitted to provide maximum support while still requiring the effort of a traditional pointe shoe. In addition, Gaynors are well accepted by both Butch and Femme which is not the case with ballet boots. Ballet boots are not permitted because they don’t cause the wearer to work nearly as hard to stay safely balanced on her platforms as pointe shoes do and we have found the women who wear pointes for their early asphyxia training are far more successful at managing the difficulties associated with breath control than those who wore ballet boots so ballet boots are no longer approved footwear for asphyxia training. Other schools will allow the use of ballet boots, but it just seems to us that a woman who wants to wear ballet boots for our asphyxia course isn’t interested in putting out the effort we think the course requires.

Inverted tank set: Wearing an inverted tank is the preferred tank configuration during asphyxia training because it is easier for a Butch to shut off her Femme’s air while penetrating her doggie style with a strap-on when the valve is where she can easily reach it. And, an inverted tank is more of a challenge for the Femme trainee to reach the valve on her tank to turn her air back on herself if that becomes necessary. Our couples training is symmetrical to ensure that both the Butch and Femme get to be penetrated and use a strap-on so they understand what and how their partner is feeling. After the couple has practiced having their air shut off and turning it back on themselves so they are confident that they can do it on shallow water test dives we have the girls dive in a 20 ft deep training pool wearing gas guards and dive-gel for actual penetrative sex while their air is shut off. Traditionally a female trainer goes into the pool and down on training dives to demonstrate and to provide correction to the couple.

The male option: With lesbian asphyxia training we also offer an option for unprotected penetration by a male trainer. That option is very popular, which I found surprising but my psychiatrist says it is a chance for them to experience an orgasm with a man in a controlled environment w/o risking a heterosexual social encounter among the general population and any responsibilities that might involve. It’s a way to safely experiment with heterosexuality; like having a female trainer masturbate a Het-chick in asphyxia training (an option we also offer) so the student can experience a Bi-encounter. Interestingly, there is a rather high rate of unintended pregnancies of lesbians who chose unprotected penetration by a male trainer. The women are aware of that when they select the option and chose it anyway since it gives them a guilt free encounter with a man. However, there is another reason for its popularity. A Butch often encourages her Femme to choose it because the risk of pregnancy is so high – about 23% even when they are using a gas guard – it reinforces the stereotype of men causing women nothing but trouble, a mindset that Dykes and Butches want to encourage among their Femmes because it is the Femmes who men are constantly chasing and who therefore are at greatest risk of at least turning Bi thus significantly lessening the emotional hold of her ‘Husband’.

Cycling, diving & protection

The purge button works, just be careful how it’s used!


The menstrual cycle and diving: As this is written I’m cycle day 25 (CD25) and in my luteal phase. I will get my period this coming Friday after a normal and very regular 28 day menstrual cycle. Dive-sex is great fun, but for a woman it takes a little extra care. When diving a cervical barrier of some sort, known in the trade as a ‘sports shield’ is a must for upper reproductive tract protection if there is any possibility that the woman could be involved in any sort of penetrative sex. That’s because (as returning readers know) there is a possibility of pelvic infection from having pool water forced into her uterus by the hydraulics of his thrusts or a life threatening embolism if a man or woman gets creative and s/he decides to fill his or her partner’s vagina with compressed air by hitting the purge button on a single hose regulator. Some regulator mouth pieces work better than others for doing that, but I’m not going to be an enabler by telling you which ones they are.

For women cycling naturally and in need of contraception condoms don’t work under water as they almost always come off. Either the guy pulls out of it or he leaves it wadded up inside her where they have to fish it out later. Fishing it out can be fun, but if the condom was being used for birth control the woman could end up being both literally and figuratively fucked! If she’s just diving typical swimming pools that aren’t more than 15 feet deep she can use a diaphragm both for contraception and as a sports shield for upper repro tract protection. But diaphragms are only effective protection when diving no deeper than 10 meters. That’s because the hollow steel spring rim begins to distort from the water pressure below that depth and the distorted rim will cause the seal to fail allowing sperm, water and air to get into the uterus. So, below 10 meters the only safe barrier to use is a properly fitted cervical cap of one sort or another. The only cervical barrier generally available in the U.S. right now is FemCap www.femcap.com. Our clinic fits a lot of FemCaps which most women can wear and with the removal strap trimmed off are more comfortable to use. For really dedicated professional women who need the smallest and best barrier protection possible Oves is available. But a woman’s cervix has to be perfectly smooth and symmetrical for Oves to develop suction properly so a high percentage of women who want Oves shouldn’t be fitted with one. Any unintended pregnancies while using Oves are almost always due to the user being a poor candidate for the device. However, a cervical cap should not be worn while menstrual because the small dome can fill with flow and dislodge compromising the woman’s protection.

Diving while menstrual: Dive-sex while menstrual should be limited to depths above ten meters. That’s because a diaphragm must be used as a sports shield to collect the flow in the much larger dome and as I mentioned above diaphragms are only effective to a depth of ten meters. Not that there is much likelihood of sex below that depth around here. Other than my 64 foot deep pool, the pit, the only other place nearby is Lake Mead which is plenty deep in spots but the visibility at that depth is extremely poor and there is often a lot of particulate matter in the water which can cause friction problems even when using plenty of Dive-Gel. To minimize the likelihood of menstrual cramps a diver can take 800 mg of ibuprofen an hour before diving. Of course if she has disabling cramps she shouldn’t dive at all while menstrual. Unlike urine menstrual flow seems to slow while under water but will release with a gush after reaching the surface.

There is an exception to the ten meter rule for dive-sex while menstrual. That is if the woman has been fitted with an IUD. Then, since contraception is assured by the IUD she can wear a cap for short duration dives where the dome hasn’t time to fill and dislodge. When the diver reaches the surface and no longer requires over-pressure protection she can remove the cap and reinsert a diaphragm or Diva cup for flow control.

Diva Cups: A brand of silicone menstrual cup that can collect flow for up to twelve hours is called Diva Cup, www.divacup.com . There are others but Diva is very popular and worn by most of my friends when they have no plans to have sex. It dives well but of course you can’t have sex with a menstrual cup inserted and removing it leaves the woman totally unprotected. Because my partners and I are so spontaneous when I’m menstrual I’ll wear a Cooper Surgical Milex wide seal diaphragm. A Milex wide seal has a slightly deeper dome that takes longer to fill and the wide flange around the inner lip of the rim creates a stronger seal so that a thrusting penis is less likely to cause it to lose suction. With a Milex inserted I’m ready when he is, ‘when the moment is right’ as the Cialis commercials say.

Divers and urination: All divers regardless of sex urinate in their dive gear, swimsuits, wetsuits, drysuits or whatever. That’s because the additional pressure compresses body tissue forcing more fluid out and through the kidneys that is excreted as urine. Women seem to be a bit more troubled by this because, generally, we are shyer about bodily functions. But when you are intimate enough with a man to be having sex what is there to be shy about when you have to pee? Any woman who has tried having sex with a full bladder knows how miserable that is, so when diving I always pee when ever I feel the need. In the case of the video crew in the pit where there are sometimes eight women were on the bottom during videoing we have an area in a far corner over a drain where we go to pee and the pumps sucked the urine clouds into the filters almost instantaneously. That way we don’t have to have to break the flow of work. The sexes are pretty much even in having to deal with the urination problem except for drysuits. Men in drysuits have an optional device that fits over the penis to collect their urine. With women the only collection options are to be catheterized or wear a diaper neither is particularly appealing but the other option of urinating in your thong and splashing around with pee in your booties is seldom chosen. There can be the possibility of bladder infections from catheters and you need someone trained to insert them under sterile conditions so the option of choice for women in drysuits is to wear an adult diaper. Because diving is so dehydrating, all divers should stay well hydrated with sports drinks to replace nutrients squeezed out by water pressure.

Diving while fertile: Most women usually know when they are fertile. That’s because when we are fertile our estrogen peaks and we are far more easily aroused, often more creative and we are draining fertile cervical fluid that wets our thongs. Our fertile interval is the few days – as many as 10-12 for some women – each cycle during which we can become pregnant and so to avoid conceiving we need the best possible method of contraception. For some that’s an IUD. The GyneFix IUD implant is especially effective and nearly impossible to expel, which is why it’s the fave IUD for use by teens at St Lucy’s and for our casino performers. For others, like me, the method of choice is a cervical barrier. In my case my primary method is an Oves cap. I’ve been wearing Oves for the last seven years (I’m on my 90th cycle being protected by Oves) and haven’t had a single pregnancy scare so I’m certain that I have an amazingly effective fit. However, there may be times I don’t know the size of the man’s genital equipment ahead of time and want to protect against a man who might be much too large for me. In that case I will ‘double bag’ and wear a large strapless FemCap as a thrust buffer over my Oves to provide some protection if he is too long. If I’m unsure I’ll wear a FemCap just in case.