I fuck Millie in the ass

I bend Millie forward a bit over Ashley, and start pushing my dick against her ass. At first her tight hole will not open up for my cock, but I push a bit harder and my cock slides into Millie's ass.

I let it go about a third of the length into her ass, then I pause for a while to let Millie adjust to having her ass penetrated, as I can see her face is getting red and she is panting heavily.

Then I hear Ashley say:

"Are you fucking my mom in the ass?"

She is looking straight at me from where she is laying.

I smile and nod in reply, and Ashley says:

"Good, she needs a cock in the ass to calm down."

I feel Millie's hips starting to move, she is starting to fuck Ashley again with her strap-on to get Ashley to moan from pleasure instead of talking. Millie moving her hips is also causing my dick to move around in her ass, so I also start moving my hips, my thrusts into Millie's ass causing the strap-on to move in Ashley's pussy.

Millie stops moving her hips, just receiving my thrusts into her ass, and letting these push her strap-on into Ashley's pussy.