The Best Big Boobs Inflation and Oppai Expansion Scenes in Anime Ranked!

Tomo Yamanobe wearing loose clothing.

Credits: Hoods Entertainment

Contents

  • Introduction: When Oppai Takes Over the Screen!
  • Maria’s Adult Form in Shinmai Maou no Testament
  • Yami’s Transformation in To Love Ru Darkness
  • Mafuyu’s Breast Expansion in Seikon no Qwaser
  • Ayame’s Boobs Explode in Noucome
  • Hakari’s Imagination Runs Wild in 100 Girlfriends!
  • Conclusion: Oppai Dreams That Keep On Growing!

When Oppai Takes Over the Screen!

We all know ecchi anime is no stranger to big boobs, but sometimes these shows take things to a whole new level with boobs expanding, breaking clothes, and straight-up inflating to over-the-top proportions! Whether it’s through transformations, special powers, or even just some wild fantasies, these anime scenes have given us some of the biggest and most memorable oppai moments ever.

Today, we’re ranking the top 5 moments of boob expansion and opai inflation in anime! These are the scenes that had fans blushing and laughing as the screen was practically dominated by giant jiggling oppai. Let's get right to it, and remember, sometimes bigger really is better!

5. Maria’s Adult Form in Shinmai Maou no Testament

Maria growing and breaking her clothes.

Credits: Production IMS

Starting off our list is none other than Maria from Shinmai Maou no Testament. In this fanservice-filled series, Maria is known for her seductive tricks, but when she activates her adult form, things get even wilder! She grows into a busty bombshell with massive oppai to seduce Basara—and it’s a transformation that leaves little to the imagination. 

Fans love this scene for how it just pushes the limits of how big a character’s boobs can get in an anime transformation. Maria goes from cute loli to voluptuous vixen in seconds, and it’s honestly so fun to watch! Plus, her mature form just adds a whole new level of sultry to her character.

4. Yami’s Transformation in To Love Ru Darkness

Yami growing her breasts and body.

Credits: Studio Xebec

Coming in at number four is Yami’s transformation from To Love Ru Darkness! In her adult form, Yami goes from being a petite badass assassin to a grown woman with huge oppai—and let's just say it’s a transformation you don’t forget! As her body grows, her boobs inflate to proportions that even had the characters in the show blushing. 

The best part? Yami’s transformation comes with some serious fanservice moments, and her new adult figure definitely shakes things up. Fans are still talking about how this moment gave us one of the most iconic boob inflation scenes in ecchi anime. To Love Ru knows how to do fanservice right!

3. Mafuyu’s Breast Expansion in Seikon no Qwaser

Mafuyu Oribe boobs growing and breaking her clothes.

Credits: Hoods Entertainment

Next up is the absolutely jaw-dropping moment from Seikon no Qwaser, when Mafuyu’s breasts suddenly grow, bursting right out of her clothes! Her expansion scene happens in one of the show’s intense moments when her boobs swell to massive sizes, literally breaking her bra and leaving her in nothing but shreds of clothing.

This scene is iconic in the world of ecchi, combining action with over-the-top oppai moments that just leave you gasping. It’s definitely one of the wildest moments of boob growth we’ve seen in anime, and Seikon no Qwaser is known for pushing boundaries. Fans of this anime know this isn’t the first time the show has delivered massive oppai, but this scene stands out as the most explosive.

2. Ayame’s Boobs Explode in Noucome

Ayame Reikadou's boobs breaking her uniform's button.

Credits: Studio Diomedéa

At number two, we have Ayame Reikadou from Noucome (the full title is way too long). In one unforgettable moment, her boobs literally explode out of her school uniform, breaking the buttons and leaving her in a state that’s both hilarious and sexy. Her chest grows so fast it doesn’t stand a chance against her clothes, leading to one of the funniest and ecchiest moments in the anime.

Fans love this scene not only because of the comedy but also because it perfectly captures that ecchi spirit of “how far can we take this?” It’s a moment that’s talked about a lot in fan discussions, and for good reason—it’s just so over-the-top!

1. Hakari’s Imagination Runs Wild in 100 Girlfriends

Hakari Hanazono imagining her butt and boobs growing.]

Credits: Bibury Animation Studios

Finally, at the number one spot, we have Hakari Hanazono from The 100 Girlfriends Who Really, Really, Really, Really, Really Love You! This scene isn’t just about boob expansion—it’s a full-on fantasy sequence where Hakari imagines her boobs and butt growing to absolutely ridiculous proportions. They get so big, they’re jiggling everywhere, taking over the entire frame, and the animation is just too much to handle! 

This is the kind of scene that’s so outrageous, you can’t help but laugh while still appreciating the top-tier ecchi fanservice. Hakari’s over-the-top imagination makes this moment truly unforgettable, and it’s easily one of the wildest boob inflation scenes in anime history. Fans absolutely love it!

Oppai Dreams That Keep On Growing!

And there you have it—the top 5 moments of boob inflation and oppai expansion in anime! These scenes are the stuff of ecchi legends, leaving fans stunned, laughing, and maybe even a little red in the face. Whether it’s through transformations, fantasies, or just wild anime logic, these moments gave us some of the biggest and bounciest fanservice ever seen.

I think it’s safe to say these moments are here to stay, with fans constantly rewatching and talking about them in forums and fan communities. Until we get even bigger moments in the next wave of ecchi anime, let’s keep enjoying the scenes that made our opai dreams come true.

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