Breast Busts and Cup Climbs: JAV Stars That Outgrew Their Bras

Being a long time fan of certain actresses has its perks. You get to connect on a deeper level, start noticing certain mannerisms and watch them evolve; both in their acting and their body. On certain rare occasions that physical transformation comes in the form of an increase in bust size, which no one can convince me is ever a bad thing.

Now bust size increase can come in many forms, but it's almost always because of one (or multiple) of the following: 1. Hormonal changes, like a pregnancy or perhaps even a growth spurt if the actress is still in her early adult years, 2. Weight gain. While putting on weight can have the side effect of the fat going in numerous places, that isn't necessarily a bad thing. As long as some of it goes to the boobs it's a plus, especially if the majority of it does! 3. The black sheep, the pariah, the maverick...surgical enhancements! While disliked by some -even more so in JAV circles- I am personally more than fine with it. I don't consider it cheating and I don't consider it an L, or that an actress "ruined herself". As long as it makes them happy and it's what they want for the body, who am I to say otherwise? I'll just reap the benefits as a viewer!

With all that waffling done, let us look at a handful of actresses that have clearly had to buy some new lingerie at some point!

We start off with an easy one: Nina Nishimura has been in the business for over 15 years! In that amount of time it's completely logical to see some body transformation, but Nina's changed in BIG ways. Starting off as Kaede Osawa in 2010 she was reasonably petite with her slim figure and short stature, but still boasted some reasonably impressive I-J cups. After multiple hiatuses and rebrandings she became known in the mid-late 2010s with her current name "Nina Nishimura", a bit more meat on her bones and a bigger pair of K tits. Since then she has put on a lot more weight and straddles the perfect line between curvy and BBW, with her boobs having grown even bigger! Beautifully veiny and heaving at this point, I can't find an official figure but to me they look at least a couple cup sizes bigger still, which would put her somewhere around an M cup.

From one of my favourites, to one of my very first exposures to JAV. An Kitajima started under the name Aika Suzuki in 2011 with a pair of impressive I cups. After a very short stint and an equally small hiatus she came back at the very end of 2011 as Airu Oshima, where her boobs saw a nice little bump to J cup. Not bad in the span of one year! But after yet another hiatus we got the plump An Kitajima in 2015, boasting a stunning L cup pair of magnificent sweater puppies. Beautifully saggy but not too much and insanely squeezable, she was at her absolute physical peak in my opinion, and it's a shame we only got a couple of years' worth of movies. While not a massive difference like Nina Nishimura's 4 cup sizes, An's was equally impressive due to the time frame with an increase of 3 sizes in barely 4 years.

Momona Koibuchi is someone that's completely new to me and only came up while researching for this topic. While I hadn't watched any of her works beforehand, it's easy to notice she's had a boob glow-up. Now let's talk about the elephant in the room: All cup sizes aren't made equal. In her 2022 debut she's billed as an M cup but clearly these are *much* smaller than the M cups of someone like Nina Nishimura. It's quite common in the JAV industry to be a bit...optimistic about actresses' sizes. Obviously there are things like band size, general breast shape and other factors that dictate cup size so let's just brush that aside, after all we are here to see the before and after. Fast forward 3 years and Momona is regularly billed as an O cup now! This is an impressive amount of growth and she's becoming someone that's now on my list to check out - maybe on a series of posts I should regularly do, damn slacker!

Ok, put your flaming pitchforks down people. I made it clear in the introduction of this post that growth comes in many forms with surgery being one of them. And Hikaru is the crown jewel of how to absolutely skyrocket your presence with a pair of bimbo globes. Now to begin, she used to have wonderfully juicy natural J cups back in 2020 when she went under the name Aka Asuka. She enjoyed reasonable success but by 2023 and a weight loss later they had deflated to something closer to an I cup - or even H in my opinion. So at some point in late 2023 (judging by her sporadic social media presence and the change in her body by the end of the year) she went under the knife. And whoever was her plastic surgeon should get a Nobel award in my opinion! Beautifully round and veiny, they are a worthy successor to the likes of Sakura Sena's or Azumi Nakama's bimbo balls.Officially she's labelled as a K cup nowadays but personally I think it's a rare reverse Momona Koibuchi case, i.e they are actually downplaying her size. To me she easily looks closer to an L but it may just be how perfectly upright they sit on her body. Watching her give paizuris is a blessing!

I've teased you long enough with that thumbnail picture, so let's talk about her: Anri Okita has had one of the biggest growths in the history of JAV stars. It is a massive shame that most of it came after her retirement from official tenure as an actress, but we do occasionally get a topless picture from her amateur work. When she burst into the scene in 2011 she had a decent pair of K cups, but by the time she called it quits in 2015 they had grown 1 more cup size to L. Not bad for 4 years and they started looking beautifully plump. No one though could have anticipated the pure explosion of size that would take place after her pregnancy and slight weight gain! She blew straight by M cup during the late 2010s (M for Massive) and has settled into a gargantuan P size in the past few years (P for...prodigious? Planetary? They must have their own gravity field at this point!). It really is a massive shame we rarely get to see them in all their naked glory nowadays but still, what a boob journey it's been for us fans.

And that is it for this post! I definitely have enough actresses that qualify for this to make at least 1 more entry so don't worry! There's more big classics coming as well as hidden gems. And please, any examples you have of boob growth you can tell me down in the comments below! MV