She wants to offer Mike a hole

The dominatrix approached Mike with her leashed "pet" on all fours, his cock hard and throbbing in the open air. Mike was slowly able to get a better look at the pair, he hadn't noticed the black strap on the woman was wearing, nor the blindfold the "pet" had on.

"See something to stick that in?" The woman said pointing at free bobbing cock Mike had been gently petting with a single finger.

Petting his cock like that was something he usually did while looking for a porn video he was interested in, a way of warming himself up. He hadn't realized he was doing it in public. His cock was more than prepped for whatever was being offered.

"Jackson why don't give this nice man in front of you something to fuck."

"Mom, please..."

"Jackson you are to refer to me as mistress".

"Yes mistress, can I please cum after mistress?"

"Mom?" Mike asked the dominatrix.

"He's just like his father, always forgetting who the boss is when I take him for walks. Now turn around Jackson and get your hole ready for this nice man's cock."

Jackson then slowly spun around on all fours. Revealing his asshole bared to the world. Already wet and slightly gaping.

"He's such a good boy, isn't he?"

"I uh guess".

Mike got lower and lined up his ready cock with the asshole slowly and pushed in. Aside from his aphrodisiac filled orgy at the church he hadn't fucked another guy's ass. It felt roughly the same, on his shaft.

"Good boys."