There's Nothing He Can Do

With a gasp and a grunt, hating himself the whole time, Dylan cums all over Emily's hand.

"Wow bro. Great performance. Wonderful endurance. Makes me wonder if you don't want this, deep down." Emily smirked.

"No! I don't! You made me..."

"I didn't do a thing, besides touch you. Tell the truth now, didn't you have fun?"

"...yes."

"Well, I hope it was worth it. Cumming on your sister has to be worth double points, no-" She willed him to open his mouth and stick out his tongue, then carefully wiped his sticky man-goo off on it. With an evil grin, she made him swallow. "Make that triple points. So let's see..."

Dylan's hair doubled in length, stretching past his ears. His five-o'clock shadow fell out, followed by all his body hair. As a final insult, he grew small A-cup breasts.

"That should do it, and a small surprise for the morning. Hope you do better the rest of the week sis... sorry, 'bro.'" Laughing she stuffed her panties back in his mouth and made him lie on his stomach, no drowning in spit, to sleep.

"Sweet dreams."