More teamwork

The twins punched rapidly into Casey’s stomach. Their punches were weak, but they were hitting her so fast that Casey could barely react. Casey fell onto her ass weakly, Casey lying down in front of her. She slipped her tiny hand inside Casey’s cunt, making her gasp and writhe.

“Wow. I got a lot of room in here. I wonder…” She slid her other hand into Casey’s cunt as well. “Gee, I can only fit one in most girls. Big sister’s a big slut, isn’t she?”

Casey tried to pull Petty away, but Timmy stepped over her waist. “I’ve been waitin to do this since I was in kindergarten!” Timmy was already stripped nude, so he quickly thrust his cock into his sister’s mouth, thrusting inside her until she was gagging on it.