John gets an over-the-knee spanking

John's mother pulled him over her lap and continued the assault on his bare ass. Charlotte giggled seeing her brother struggle to try and cover himself, but each swat hit its mark.

John felt it couldn't get any worse until he realized something... His member was rubbing on his mother's legs while she was spanking him, and it felt embarrassingly good. Soon the feeling of humiliation was just amplifying his tiny erection and it wasn't long until he was oozing pre-cum.

"Mom please stop! Not in front of Charlotte!" he cried out pathetically.

"Well you're never going to learn your lesson if I stop now!" his mother replied, "What? Are you embarrassed your sister saw your little dick?"

Of course he was, but he couldn't focus on that now. The humiliation was only bringing him closer and closer to an embarrassing orgasm. He just had to hold on a bit longer...