Changing positions

The three of you soon change positions, so you're holding Diane from behind against the wall whilst your coworker continues roughly fucking her asshole. The entire office watches on, with those who are too far to the back of the crowd to see instead simply listening to the sound of Diane's ass cheeks clapping as your coworker roughly pounds her ass. Without either of you noticing, Diane spits her panties from her mouth and starts talking to the coworker currently in her asshole.

"You piece... of... shit..." She says, being interrupted at each word as the breath is knocked out of her each time he pumps into her asshole.

"Fucking my... asshole... dry. You... son of a... bitch."

"There's only one bitch here I see." He responds, affording a chuckle from his observing coworkers.

"Fucking... virgin... loser. Probably the... first time... you've... seen a woman." She gasps out under strained breath between thrusts.

This only seems to spur him on more, resulting in him pounding her ass with no mercy. Holding Diane from behind you can really feel the force with which he's thrusting into the poor MILF's asshole. Perhaps this was the goal of her taunts, either because she's secretly enjoying it this rough or because she wants him to hurry up and cum, you'll probably never know.

If making him finish is his goal however, it certainly seems to work as the coworker is soon releasing his seed deep into her asshole. The cum quickly comes leaking out of her rear hole and dripping down her leg all over her tights.