My heart didn't just race; it felt like it was trying to punch its way out of my chest while I scrambled for a believable lie. I knew my stepdad was doing the exact same thing. I could feel his frantic heartbeat against mine.

He was still rock-hard and throbbing deep inside me.

My stepdad didn't shove me away. That would have been disastrous. Instead, his big hands gripped my waist, turning his sexual hold into a steadying one.

"Enough of this! Get off him and go back to your seat right now," Mom barked, her voice sharp. She already suspected foul play.

"Sarah, breathe. You're scaring her," my stepdad...