Offer up your ass instead.

"No it's that time of the month." You lie hardly believing the voice coming out of your mouth. "But you could fuck my ass if you want." As you add this last part you put your leg on the countertop locking your heel against the edge giving as slutty of an invitation as you can muster.

"Now how could I say no to that." He is on you in a second using hand soap to lube your ass, you help using your fingers to pull yourself as wide as possible so he won't rip you in half. "You sure are a nasty slut." He adds as he presses his head against your asshole. Then he pushes the head in slowly at first but once the tip is in he proceeds to stuff and stuff till his nuts brush your thighs.

"Oh, you are gigantic. Hell I can't take it. You have to stop you are going to tear me in half." You protest moaning and screaming. But as he begins to bang your legs against the countertop these soon change. "Oh yeah, ungh ungh, fuck me harder. You are amazing. Fuck yes. Don't stop. Oh fuck yeah ungh."

After a dozen relentless minuets you are amazed at his stamina, if not a bit envious. All the while simply amazed at the beautiful woman staring back at you with your eyes in the mirror as he drives you against the counter. Finally he pulls out all the way and hops up on the counter beside you. “Time for you to do some work bitch.“ With that he grabs you and pulls you on the floor and drives himself all the way in your mouth and holds for a couple of seconds before continuing. “Yeah that’ll do the trick. Now get up here and ride me for a while.“ He hauls you up in a ball effortlessly and you plant your legs on either side of him facing away, he scoots back against the mirror and waits. “You sure do have a tight ass, but I got an itch only a pussy can scratch. Come on, sit that thing down on me, I don’t mind a little red now and again.“

He might not take no for an answer.