Tuesday, August 31, 2010

Vaginal breathing

ScubaPro S600 reg used for vaginal demand valve

Note: Because the subject of ‘bubble fucking’ has come up again recently [in a reader’s question in my August 22, 2009 entry] and I’m sure new readers haven’t a clue what I’m talking about and returning readers may have forgotten, I’m reposting most of the entry from October 4, 2009 that discussed Virginal Breathing, known in the trade as ‘bubble fucking’, in detail. Additions and changes have been made where procedures have been improved since the original entry was posted.

Vaginal breathing: Vaginal breathing is an evolving technique that we are learning more about as we gain experience with the use of vaginal demand valves (VDVs) and it gives us new capabilities for the use of gas in the diving fetish community. I was chatting with a friend some time ago now about what the intent was, from a woman’s point of view, of being bubble fucked and I had to admit that at first (and for the majority of us) it was only to feel that we are being air-fisted and more often than not we would do it to please a boyfriend since men seem far more interested in filling us with air that we were to have it done even though we were properly protected. That was because we were just starting to experiment and there was no sexual pleasure for us in just being filled with gas. Now however, those of us with very strong pelvic muscles have begun using diver adjustable second stage regulators like the Scubapro S600 to permit vaginal breathing. With the cracking valve adjusted to the lowest point possible w/o the VDV “free flowing” (leaking a steady flow of breathing gas) and with the VDV inserted and properly sealed vaginal breathing is quite different and extremely pleasurable.

Scubapro S600 second stage: We are using a Scubapro S600 second stage reg with a yellow purge cover (to identify it as the vaginal demand valve) at the end of the octopus. In an emergency it can be used as a buddy reg. but the mouthpiece has been replaced by an extensively modified SeaCure custom mouthpiece to fit the user’s pelvic anatomy with the individual wings widened, the width between them narrowed and the shoulder of the left wing padded where it rests against the back of the pubic bone when locked in place behind the pubic bone. The S600 is a good inexpensive (less than $600) regulator that allows diver adjustable inhalation effort a feature vital to its successful use for vaginal orgasms. This feature permits the diver to adjust the breathing effort (cracking pressure) via an oversized control knob which allows a girl using it as a VDV to fine tune the regulator just this side of free flow for ‘vaginal breathing’.

Upper reproductive tract protection: First the woman needs to be wearing a properly fitted and positioned gas guard. This is critically important to protect her from having compressed air forced into her uterus where it will enter her bloodstream as an air bubble and cause a stroke or heart attack.

We are recommending that a woman at least wear a Reflexions flat spring latex diaphragm. The Reflexions will protect at any depth, but the mouthpiece of the VDV will rub against the dome and eventually puncture it. A close inspection and frequent replacement of the worn Reflexions with a new one will minimize the risk of a puncture causing a fatal accident. Ideally a woman wanting to use a VDV should be fitted with a cervical cap such as a FemCap or Oves that the VDV mouthpiece will not interact with and both FemCap and Oves can be worn safely for protection at any depth. However there can be problems with a cap. Caps can be difficult to fit properly, they are tricky to insert correctly and for women who have given birth they dislodge about 25% of the time so are unsuitable for something as dangerous as vaginal breathing for woman who have given birth. Even though Gepetto’s Oves style caps are harder to fit and insert correctly for women who can be fitted properly they are far superior for ease of vaginal breathing. Because a well fitting Oves almost never dislodges unless worn during menses when it fills with flow and floats off the cervix. And because of their small size Oves does not restrict the dynamic response (flexing) of the vaginal walls as does the rim of a diaphragm while allowing direct contact of the upper wing of the VDV against the erectile tissue of the G-spot. Once the woman has properly protected her cervix and upper reproductive tract she can safely insert her VDV.

Initiation: Vaginal breathing is begun by inserting the modified second stage reg mouthpiece into her vagina, making sure that the padded wing is up behind her pubic bone to hold it in place. Then the diver pushes her purge button filling and expanding her vaginal vault with air. She immediately Kegels (contracting her vaginal muscles) expelling as much of the air as she can. Then she relaxes her vaginal muscles to let her vagina expand which sets up a small vacuum in her vagina which opens the demand valve and fills her vaginal vault again after which she contracts the muscles in her vaginal barrel and expels the air again. This repeated cycle of filling and emptying her vagina of air by using her pelvic muscles is what we call ‘vaginal breathing’.

Free-running gas driven orgasms: Vaginal breathing would only be a curiosity except for the fact that it makes gas driven orgasms under control of a woman’s own pelvic muscles possible. With every expansion and contraction of the diver’s vaginal walls her G-spot is rubbed against the wing of the VDV mouthpiece and that pressure and relative movement is enough to caress her to orgasm. One of the amazing things about VDV orgasms is that unlike masturbating with a dildo or a vibi or having a man thrusting inside you there is immediate response from the VDV to any inhalation or exhalation (negative or positive) pressure in the vagina so that if the unit is properly inserted and sealed against the labia and the pubic bone once vaginal breathing is established it will continue to free-run until either: 1) The cracking valve is adjusted upward to make the vaginals work harder to suck gas. 2) The diver runs out of air in the tank that is feeding her VDV, or. 3) The woman’s vaginal muscles tire and begin to spasm and cramp. The third alternative is the one most of us who can actually achieve VDV orgasms usually experience because they are so addicting that none of us wants to end them until our muscles cramp and we have to. We all dive with full HP 130 tanks so unless we have a free-flow problem the gas will outlast our muscles regardless of how skilled we are as long as we are in a 20 ft deep training pool. Of course we need Ibuprofen and sleep with a heating pad on our bellies to relieve the pain of overworked vaginals, but at least for me the muscle cramping bothered me less and less as I built up my muscle strength with practice. So that I can now have a 20 minute session ending in an amazing orgasm and while my pelvis is tight afterward I’m still good to go.

Equipment changes: The standard heat malleable mouthpiece of the SeaCure custom unit has been changed considerably to soften the polymer so that it will flex more easily under vaginal muscle compression allowing more complete emptying of air during vaginal exhalation which improves the dynamic response of the device. The left or top wing of the mouthpiece has been widened to increase contact with the area of the front wall containing the G-spot and as mentioned earlier the shoulder of that wing has been padded where it rests against the back of the pubic bone. A labia shield has been added so that when the VDV is properly inserted the vulva including the clitoris and its shaft is contained within the shield. This requires the wearer to have her pubes totally waxed or freshly shaved. There is a channel in the labia shield that allows the excretion of urine w/o having to remove the VDV. Compression from diving and the wing of the mouthpiece pressing on the area under the bladder make retention of urine uncomfortable and therefore unlikely during wearing and use of a DVD so just urinating whenever is pretty standard, especially while soloing.

Cautions: There is a down-side to using a VDV for orgasms. One problem is that the diver can run out of air if she is using a small or partially filled tank because she is using two regs and her VDV is so finely tuned that if she isn’t careful it can free flow and exhaust her air quickly. It’s a good idea to have a VDV routined every few dives (more frequently than an ordinary second stage) because of the possibility of clogs from vaginal fluids, lubricants and semen that are expelled through the exhalation chambers of the unit during use.

Another problem is the possibility of addiction. Gepetto’s testers and Taryn and I all feel the narcotic effect of high levels of endorphins filling our bloodstreams from almost perfect sex in a weightless environment. And for some there is the possibility of over stressing the body and having a seizure, an increased possibility during extended (free-running) orgasms. Women shouldn’t dive alone for at least the first four or five times they use a VDV because if things go well the intensity and duration of the orgasm will often cause her to pass out. Not a problem if she has a large full tank and is wearing a FFM and her equipment is working properly, but if not she could wake up out of air, or perhaps not wake up at all. Using a pressure gage with a low pressure alarm can prevent being surprised by an out-of-air condition but is no help if the diver has an orgasm induced seizure.

Insertion: The VDV can be inserted before the diver enters the water or after. The S600 is basically buoyancy neutral but if inserting before entering the water insertion should be done on the pool edge so the diver can immediately enter the water after checking the seal or she will have to hold it in place as she walks which is cumbersome and embarrassing to do and comical to watch. Experience shows that a single 10 ml prefilled applicator of DiveGel in the vagina will be enough and another 10 ml syringe applied all around the inside of the labia shield so that when it is sealed tightly with the shoulder of the mouthpiece behind the pubic bone there is nothing under the shield that is pulling or pinching.

Care of the VDV: the modified mouthpiece and labia shield are precision molded for an individual user and any snag, nick or tear in the surfaces and seals can be painful or cause the unit not to work properly so a diver should not let her VDV drag along the pool surround or bottom. Protecting the custom fitted surfaces with a padded reg-bag until she is ready to insert it is a must.

Position for soloing: I’ve found what works best for me is to tether myself between two bottom anchors in about 12 to 15 feet of water. I wear a FFM – a vintage Drager or a Mistral twin-hose connected to an Interspiro, a full HP 130 tank, pool pointes and with an Oves cap sucking on my cervix. I go no deeper when using a VDV to minimize nitrogen loading because of the likelihood of extended bottom times. I use Velcro ankle leashes fastened to the anchors which are about 15 feet apart and then inflate my BCD until it pulls me taunt in a semi-split with my head 4 to 6 feet below the surface. That way my legs aren’t in the way, the hose of my VDV is between my legs, and I’m nearly weightless with only the sounds of the rhythmic sucking and exhalation of gas from my lungs and VDV. It’s awesome!


  1. Jill,

    Ballet fan here and was wondering if you have an fetish friendly ballerina friends at ABT, SAB, NYCB or any of the other schools or companies here in NYC. Reading your blog awoke in me memories of my own musings as I watched those stunning extensions.

    I would be interested me meeting a fetish centric ballerina, perhaps not as advanced in the BDSM arts as you appear to be. A man can dream.

    On another note... I am fascinated by the penetrater plug. Is this a commercially available product your could furnish a link to?

    Am I understanding that this is a plug of silicone which has a formed cap which encases the vagina and presents a smooth "mound"... no visible camel toe and obviously no means to access any of the *fun parts*. I assume that that this would be exciting in a similar means as wearing a dildo.

    Thanks for the blog.

    These are worn by the girls who feel free to be fondled down there and such is expected and even encouraged by patrons.

    I assume overt sexual *displays* are normal activities at this club and this is both a provocative and protective strategy.

  2. Hi ballet fan.

    >I am fascinated by the Penetrator plug. Is this a commercially available product you could furnish a link to?

    If there is something similar commercially available I’m not familiar with it. The anti-expulsion ridge and the insertion-removal designs are proprietary.

    >Am I understanding that this is a plug of silicone which has a formed cap which encases the vagina and presents a smooth "mound"... no visible camel toe and obviously no means to access any of the *fun parts*.

    The outer ‘head’ of the Penetrator encases the vulva and clitoral shaft while the plug itself fills the vagina. Penetrators can be made with smooth convex heads or a camel-toe cleft of varying depths made to the customer’s specs.

    >I assume that that this would be exciting in a similar means as wearing a dildo.

    Exactly. So it is an effective tool for use in teaching dancers to compartmentalize during performances.

    >Thanks for the blog.

    Thanks for reading and commenting on it.

    >These are worn by the girls who feel free to be fondled down there and such is expected and even encouraged by patrons. I assume overt sexual * displays* are normal activities at this club and this is both a provocative and protective strategy.

    Your grasp of the circumstances that require a Penetrator to be inserted while mingling with customers at the club is spot on! Of course there is the occasional incident where a client gets his finger in the removal loop that lies flat along the wearer’s perineum and ‘unplugs’ her. But that is very rare.


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Powys , Wales, United Kingdom
I'm a classically trained dancer and SAB grad. A Dance Captain and go-to girl overseeing high-roller entertainment for a major casino/resort