He stepped closer, and I could see Miranda reach out and take his dick in her hand and bring him closer still until he must have been in her mouth. I could tell mostly because Matt started moaning immediately.

"Alright, time to do my part," I said, and I shifted my feet again quickly and then started to thrust up into Miranda hard. I kept her still by palming and squeezing one cheek, and grabbing her waist with the other.

"Mmmphg!" Miranda shouted, but her mouth was occupied with dick.

I powered through the strokes for a half a minute, slamming up into her, then I stopped and forced her...