Crossdresser Resources

Useful information for transgendered girls

Breasts – A How to Guide, Part 4 (silicone breastforms)

If you haven’t read my other breastform articles, you might want to check those out first for some cheaper breastform solutions. Or maybe you just came straight here because you have a huge wallet and don’t want to bother with the homemade stuff? That’s fine, but I’d still advise that you play around with some sort of homemade form (even just stuffing) to at least get an idea of what size and shape you’re looking for.


Ok, so you want to buy breastforms, hmm? Well the first thing to figure out is an appropriate size. Oh, and be aware that the larger the form you want, the more expensive. So not only are smaller forms usually MUCH more realistic, but they are also usually cheaper! If you’re not sure what size you want, go re-read the bra section on my clothes page. There is a really good summary there at the end of the section. But to re-cap, shoot for a B-cup breast to be “average”, and don’t forget that the size breast form you need to be B-cup changes based on your band size. I’m going to guess that most crossdressers will ignore my advice and go for a C-cup, and there’s nothing wrong with that. But I really do not recommend forms that are D-sized and larger unless you really just want huge tits and don’t care what anyone else says.


If you do go for large breast forms (D-cup or bigger), they will frequently be a bit saggy. After all the original intent of breast forms was to replace breasts that were removed from cancer patients, and most cancer patients are older and gravity is starting to take effect if they have large breasts. That means . . . you either need a REALLY good bra, which will likely squish the breastform and cause wrinkles in it. No permanent damage or anything, but it doesn’t really look pretty. Or your other option is to find breasts made specifically for crossdressers that are advertised as “perky” or “young” or something of the sort. Add some extra cash for this option usually. And just because they say perky doesn’t mean they will stay on your chest and not sag . . . you’re really going to have to glue these suckers on solid, and you’ll probably still need a strong bra to keep them from causing your SKIN to sag and thus the breast in turn will look less than perky.


Ok, enough on size, on to shape. Again, go re-read the bra section under clothes if you don’t remember what shapes are available. As a reminder though, here are some of the more common shapes:






Now what I didn’t mention before is that triangular forms are a little saggy too by their nature – one of the points of the triangle goes up, which means two of the points are on the lower edge of the form resulting in most of the breast mass being at the bottom of the form. Don’t worry though, that’s the way breast tissue really works. Teardrop forms can be worn in 2 different directions. If you have the point of the teardrop up, it may be a little saggy, but actually looks very realistic if you want to go bra-less. The other option is to wrap the point of the form around under your arm, which makes for a very perky breast. It’s somewhat unrealistic though because then the nipple points slightly outward away from the center of your body. I’m still a huge fan of the asymmetrical breastform – it creates a very realistic but perky breast. The little point goes up, creating the impression of weight (sort of like sag, but only enough to appear real), and the large point wraps under your arm, filling in that oh-so-important breast tissue that most people forget even exists.


One last note on shape . . . you’ve probably met girls who say they’ve got big C or D tits, and you look at them and wonder how they hide them so well. Or maybe you see a girl with amazing boobs who claims to “only” be a C-cup. That’s because (among other things, like how much underlying muscle, how firm the connective tissue, how dense the breast is, etc) there are two ways to fill the volume of a cup – projection (outwards from the body) and spread (think the “width” of the breast). Projection makes for breasts that look really good, have great cleavage, etc. But later in life these will also be the breasts that hang straight down. Spread makes the breast appear more uniform with the chest wall, and causes breasts to disappear when a girl lays on her back. When shopping for breast forms you’re not likely to have options about projection vs spread, though some stores will advertise that their forms have “great projection”. There does not seem to be a standard measurement for this, but in my experience most forms are made with a fairly standard ratio to fit the “average” person. If you DO have a choice, remember that you want a balance of projection and spread – spread is what will connect the form to your body and keep it in place. Projection will create the appearance you’re looking for.


Ok, so you know what size form you want, and you know what shape you want . . . now it’s on to materials! “But aren’t they just all made of silicone?” No! Silicone is the best known and most common material to be sure. And for good reason – it has great texture, weight, and elasticity, just like a real breast. It’s also uber-expensive, fragile, sensitive to chemicals, and the for large breasts it can break under its own weight. It’s worth a little more discussion though so you know the details if you’re looking into silicone forms.


Silicone . . . the most realistic form you can get. The density is about the same as fat (ie breast tissue), and the elastic properties are also amazingly similar – it “bounces”. The problem with this great density is that you are trying to attach the form to your skin, which is also amazingly stretchy, and the form has to be able to support it’s own weight. In a real breast everything is held inside a nicely resilliant package and attached to the rest of the body with some super connective tissue – it’s not going anywhere in the short term. So large silicone forms will sag the farther they project from the body, and the more total weight in the form the more they will cause your own skin to sag with them. Silicone comes in a lot of varieties . . . and breastforms are made of 2. The “filling” of the form is different from the “skin”. The filling has the right properties to simulate fat, but it doesn’t hold itself together very well. So a skin layer is added to hold the form together, much like a woman’s skin holds the breast tissue in. This skin layer, however, doesn’t feel very much like real skin, so manufacturers try to keep it as thin as possible. A thicker skin of course is more resistant to damage and can support more total weight in the form without sagging, but you sacrifice some of the realistic feel and bounce. The skin is also important because if it is punctured or ruptured, your form is ruined. And because the skin is made thin for the sake of realism, it’s easy to damage. So keep your forms away from sharp objects, and never sleep in silicone forms or lay directly on them! In addition, don’t use any products on or around your breast forms that aren’t specifically breast form safe. This means tapes and adhesives, as well as lotions, lubricants, cleaning products, etc. Mild soap (ie hand soap) is fine, but otherwise keep chemicals away!


Whipped silicone is a fairly new material used for breast forms. It has all the same properties of regular silicone except that there are tiny little air bubbles in it, so it’s more foamy than dense. It’s used for larger forms so they don’t sag, and so they are easier to wear (don’t weigh you down, cause back problems, etc). They also don’t feel quite the same, and don’t bounce quite the same. Of course, if you have DDD forms, you’ll probably be thankful of it. Don’t bother with whipped for “normal” sized forms though, as it will only ruin some of the realism.


Swim forms are a different material . . . I think they are a type of silicone, but not 100% sure. Anyway, they are sufficiently chemically resistant to go into chlorine water (don’t try this with your regular silicone forms) and are also lighter weight. Which means less realistic, but more comfortable for sports, etc. Unless you literally plan on going swimming though, you probably won’t be interested in swim forms.


Foam forms. These are great for creating the appearance of breasts without some of the disadvantages of silicone forms. They do not feel like breasts though, and they do not bounce. They are litterally made out of squishy foam like the egg-crate material you can buy for a matress pad, etc. Foam forms are less expensive and much more durable than silicone though – you can sleep in them, lay on them, pack them in suitcases, etc. As long as all you need is to LOOK like you have breasts, this is the way to go. If you want to FEEL like you have breasts (including the way they feel on you, not just the way they feel when you squeeze them) you will need to go with silicone. There is really no substitute. Foam is also more chemical resistant and should hold up to most stuff you might put on your body. Of course, even though they’re less expensive than silicone, there’s still not cheap. So I still wouldn’t recommend wearing too much lotion or lathering them up with baby oil or lube or anything.


Last topic is breastform adhesive. No, you do not NEED adhesive – using a bra can work just fine. You will need a full coverage bra if you’re not using adhesive, so that the top of your form doesn’t flop away from your chest, but you will probably want a full coverage bra anyway because breast forms never match your skin tone and will always look fake if they’re not covered (anyone know a trick that I don’t for blending a form to your chest?). Another option is a bra with a pocket designed for holding breastforms, and in this case you cannot use adhesive. If you want to go bra-less, or need some extra security (don’t have a good bra, or will be moving around a lot), you will want to look into breastform adhesive. Sometimes this is sold as medical adhesive, but not all medical adhesives are safe for silicone. Your best bet is to buy stuff specifically formulated to be safe for breastforms, but you can also look for a medical adhesive that says “safe for breastforms” or “silicone compatible”. Along with your adhesive, you will want adhesive remover, otherwise you will get a nasty dirty film on the back of your forms eventually where dirt and oil from your skin adhere to the tape. And speaking of tape . . . it is possible to use 3M double sided tape as an adhesive, but I’ve yet to figure out a good way to get it back off. Also rather painful to remove from your chest, but bearable (not sure how it compares to other adhesives). Anyway, it’s left a film on the back of my forms, so I stopped using it. But it never damaged the silicone at least. One other “must do” with adhesives . . . shave your chest! otherwise you will not be happy when it’s time to remove the forms.


To apply adhesive, just press it down around the edges of the form, trying to make as continuous of a line as you can, as close to the edge of the outline as you can get it. Holding down the edges of the form is the most important part, as this is the area you don’t want to flap up. And often the backs of breast forms are concave, so the center of the form may not even touch your chest anyway. It’s also helpful sometimes to line up the form on your chest BEFORE applying the adhesive, especially the first few times. The best way to do this is to get a bra that leaves the top of the form exposed (the kind I keep telling you not to try and use with forms, I know). Put the bra on and fit the forms in it, lining everything up the way you want them to sit on your chest. Then get some eyeliner or lipliner and gently trace the outline of the form, or a piece of the form, on your chest. Now when you put the adhesive on, you can just stick the form right to your chest lined up with the outline. Because breastform adhesive is STICKY, and if you don’t line it up right the first time, too bad – there is no slight adjusting after it’s on, you have to do it all over again. Also, it’s very easy to notice if someone’s breasts are lopsided, so be very careful that your two sides match. You’d be surprised at how little of a mismatch will make you look funny!

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Posted by: admin | Category: breastforms | Comments (5)

5 Responses to “Breasts – A How to Guide, Part 4 (silicone breastforms)”

  1. Howard P Dambrose Says:

    I know you said they don’t blend in with your skin color,but I want to wear a dress that shows off my cleavage! What do you recommend? And, I kinda need to know today, so that I have them here by Friday! Sorry about that! Thank you….Howie

  2. admin Says:

    Howie, I think your best bet is going to be following my advice for creating cleavage ( ). That keeps the breastform hidden under your clothes to fill out the shape while still giving the appearance of cleavage using your own skin. Otherwise it’s very difficult to blend a breastform to your natural skin – you’re looking at using synthetic skin filler and some serious airbrushing, like they do for movies.

  3. Ariana Vickers Says:

    Hi there, I’m Ariana(obviously lol) I found your site to be very helpful even though I’m a woman. I noticed no one has replied to this post in years so I’m just hoping you get this and are able to reply. So getting down to business, my boyfriend is a cross dresser and I love it. However I can’t stand him stuffing his bra with water balloons anymore, they pop when we are intimate and it kills the mood so I thought about getting him fake silicone breasts as a gift. But after reading your post, I realized that due to the size of breasts we both like, it would be unwise with adhesive like I originally planned. I was hoping you could tell me a good brand or way to have huge real feeling breasts while being able to go bra-less AND be able to play with them while intimate. Any help would be wonderful, thank you.

  4. admin Says:

    Hi Ariana, yes I’m still here even if there isn’t a lot of comment action :) Hmm, big breastforms that feel real and can be worn braless . . . I think you’re going to have to go with some sort of silicone. You might want to look in to the whipped silicone options which will make them much easier to wear and stay on.

    There are also breastform stores that cater specifically to crossdressers and sell forms with attached cut-out bras. I have a pair that are probably an N-cup or something ridiculous, and if I had bought the right size bra band with them they would hold up fine. You still have the straps of the bra, but the entire breast is exposed, so I think it would suit your purposes well.

    You might also consider getting an extremely sheer bra, particularly one designed to hold breastforms. They’re basically see-through, and cover up any ugly seams between the form and your skin. I’m generally a fan of this approach.

    Unfortunately I stocked up on breastforms years ago and haven’t been in the market for new ones recently, so my info on stores is a little dated. I know I’ve ordered from before and was quite happy. They have some pretty large forms, but have a warning not to wear them without a bra! Good luck, I hope that gets you started. And your boyfriend is one lucky gurl! ;)

  5. admin Says:

    Ooh, actually I think this *might* be the forms that I bought. No promises, but they look almost identical to what I have:

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