With a firm hand

You pull back and spank her ass with a good swing. She lets out a moan. "Harder." You hit her again, with more **** this time. "Harder!" She starts using her body to fuck herself, leaving you free to focus on spanking, which you gladly do, letting your hand fly repeatedly, making your forceful contact with her well toned ass loudly. "Yes! Yes! Yes!" Mrs. Soren moans with each hard strike on her behind. You can already see her ass getting more and more pink. Her body starts shuddering as she has her first orgasm of the night, pushing you over the edge and you pull out and cover her freshly spanked ass with your cum.

You grin, "Looks like you've got some more cleanup, ladies."

"Good, at least I'm not the only one now," Mrs. Tanaka replies. You grab a permanent marker and draw a tally mark on Mrs. Soren's belly.

"Looks like you've all got some catching up to do, too," Mrs. Soren says smugly, basking in her post orgasm glow. Looking around at the pregnant, naked MILFs, your enhanced breeder cock rapidly returns to full mast, and now you wonder which lady is up next.