*Features: breast expansion role play with props; different stages of breast size growth; taboo relationship role play; yoga shorts and white t-shirt; multiple angles of my inflated boobs; fantasy sex from behind, me on top, and a messy blow job ending with a cum-inflated tummy!*

I have no clue why my step-bro keeps insisting that I try this new energy beverage. As a personal trainer, my health is very important to me! But so is the health of my step-bro. I've been trying to talk him into incorporating more exercise into his life for months now. I even offered to be his trainer! So now that he is finally here in front of me, willing to work out as long as I try his energy beverage....it seems foolish of me to continue to turn him down. After a few gulps of the gross liquid, I begin to feel...strange! Suddenly a lusty, ditzy, bimbo voice escapes my throat! And then my small boobs begin to grow and grow! What is this energy beverage doing to me!? I lay down on the couch so that I can admire and check out my new rack! You seize this as your opportunity to check my bigger boobs out too. But, wait! What am I doing!? I can't sit here and rub my tits and my pussy in front of my step-bro! This energry beverage seems to be clouding my judgement though but I continue to swallow more and more and my boobs continue to grow bigger and bigger! Soon my boobs are the size of two giant beach balls. And my excitement has grown along with my breast. These boobs are so big that I can't even wrap my arms around them! I can't see my waist or my feet! But I can see my stepbrother. And I can see that look on your face. You are drooling over these huge, inflated boobs. I want you. You want me and my giant beach balls. Come fuck me from behind and look at my massive sideboob. Watch my boobs bounce as I ride you. And enjoy the show while I try to reach up and over my huge tits to give you a blow job!