Ty stares at the frozen girl standing in his room. An expression of profound anger stuck on her face. He slowly walks up to her and waves his hand in front of her eyes, they dart around. Then Ty takes Dustin's outstretched hand and closes it, it stays closed as a fist. Ty realizes what happened and chuckles in relief.
"Oh, Dustin, you have no idea." Ty says as he continues to position Dustin's body. "I didn't actually change you so I could jack off, that was an added bonus I found out about later. This was all just to get back at you for the hell you've put me through over the last four years."
Ty begins to grope Dustin and rip off her clothes. "You know, I actually didn't finish before you so rudely interrupted me." Ty frowns as he looks at Dusy's angered face. He molds her expression into a sexy 'o' face. "You're always so angry, this look suits you better."
Ty throws his frozen sister onto his bed and frowns at her malformed genitals. "I wish you were completely a woman." Dustin's condition is turned into overdrive, and he quickly forms a normal vagina and his micro-penis shrinks into a tiny nub. Dustin screams inside.
Ty strips and crawls over Dusty's motionless body. "Once I'm done with you, I'll make you love me. And you will be my date for the dance Friday night." He whispers into her ear.