It happened fast, Becca dove for Dustin and kissed him deeply, her tongue diving right in. She was actually...taller than him now. Did Ty do that as well? She certainly was amazing looking, but Dustin really missed that sweet little redhead he brought over. The image was forced out of his mind as those jumbo sized DD breasts press on his chest. The kiss and the embrace seemed to calm him, but his dick is throbbing harder than ever.
She breaks the kiss, finally taking a breath. "I-I knew you were interested, and I tried baby, I did...but I always liked girls, ever since I knew what I wanted. And now I have the perfect body. B-but you should know...well I always thought you'd make a cute girl."
Ty's power was flowing into Dustin, he was too familiar with it. Becca held onto him as he shrank, struggling and whimpering the entire way. His voice goes first, the pitch getting higher and squeaking even as his skin starts to soften. He was now far shorter than Becca ever was, face right about the level of her massive tan tits, which snuggled right against his face. His cock was hard as a rock, what was left of it. It seemed to shorten with every throb, eventually pulling back inside along with his balls. The throbs start to get stronger, until each one makes a tiny bit of juices squirt from the new pussy forming between his thighs.
A jolt jumps from his nethers to her brain. The command hitting home just as it comes in. She no longer thought of herself as a boy, at least in the unconscious parts of his brain. Ty wanted to make sure Dusty always remembered that she used to be a boy.
"Ty please! Becca, y-you have to make him stop!"
"What? No way! Besides, we're just getting to the best part, aren't we Ty?" Becca really seemed to be enjoying this.
"Oh of course, not as big as yours right?" Ty was actually...playful with his vengeance. Although Dustin still felt as this was a bit much for a broken window.
Hair falls into Dusty's eyes, but Becca brushes it aside so they can both watch as fat builds along the new girl's chest. Her nipples flare and turn into cones, behind them two thick mounds grow. They take so long, it seems. Maybe Ty was just toying with her, but it feels like they take a full 30 seconds to go from A cup to a generous C, slowing again as they finalize into a plump, round D. As the transformation power leaves them they fill with weight and pull Dusty forward, the rest of her body was already formed to fit the freshly made tits. There are little tickles across her body as Ty fine tunes her, her hips growing just a bit to fit her chest, torso shrinking while legs got longer, though thing whole thing seemed to leave her even -shorter- than before. Becca and Ty towered over her.
"Well I think she's yours, Becks, I'm going to give you the power to transform Dustin at your will. You're kinda fun, I think I'll keep you around." Ty turns to Dustin after handing her life over to Becca.
"Dusty, you know I never told you why I didn't just take her for a sex slave. I mean...I know you like her and all, I probably could have just given her to you after I had my fun with her. But when I read her mind I saw just how perverted she is. I had the best reason ever to keep her this way, and not let her mind turn to mush as another sex toy..."