Yes

Carl needs more stimulation, so he free's his cock from his jogging shorts and starts rubbing it directly between Steffi's bum cheeks.

"Carl... what are you doing...?" Steffi asks quietly.

Carl can't take any more, and really starts thrusting. He's squeezing Steffi's butt as he goes.

"Carl, WHAT THE HELL! STOP!" Steffi shrieks. Carl thrusts and cums over Steffi's back, pumping his load over her butt, back and asshole.

Steffi pushes the ejaculating Carl off her running out of the door.