"I'm sorry!" Rachel sobbed.

"What... what happened?" I asked, slow to come back to my senses. I could still feel Andrew's hot, wet, hard dick twitching against my own and it was making my heart race.

"I can't," Rachel gasped, grunting in pain. "It can't go any farther."

"Goddammit!" Mike shouted. "That's not even halfway!" He stared down at his massive dick, still partly inside Rachel's anal passage, though even keeping it that far in was clearly putting her in a lot of pain.

I don't know exactly what compelled me to do what I did next. I want to say it was because I wanted to help out my...