That's the kind of slutty sister every brother would let work his testicles. And this one probably accustomed her to these pranks a long time ago. At least that's what I would have done. She'd have to suck and spread her legs anyway, so why not with her own man? It's about time she got her ass printed, too, so she can date like a grown-up bitch. Or maybe she's still trying to keep her anal virginity for her husband.
What a family, I'll tell you! Mom, while cleaning, noticed that her son had a morning erection. It's normal for that age. Instead of pretending that nothing happened, she called her brunette daughter and asked her to help her brother. In the end, both were satisfied, and the mother was glad that peace reigned in the family again.
I love licking. I can lick you until you squirt!