Yes. Again.

"Oh, God, that looks so fucking hot,” you groan, not realizing yourspoke until after, luckily neither seemed to have heard. You were staring at his throbbing cock, glistening with her juices and pressed against her sexy little rosebud. It was your most arousing fantasy and you were looking right at it, it just wasn’t your little dick, but some plumber’s massive pipe.

“I’m your bimbo cumslut…”your wife half wimpers, half moans as the giant mushroom pushes past her sphincter. He holds his cock there until his fingering bring her to another orgasm. At this point her legs are no longer holding her up, but some combination of the kitchen counter and the fingers and cock that are actively engaged in cuckolding you.

As your wife cums again, he pulses his cockhead in and out again. Then again. Soon, his cockhead is fucking her previously virginal rear entry and she is moaning more than whimpering.

Just before he brings her to orgasm again he removes his fingers from her pussy. He continues to fuck her hinter hole until she gasps out with another orgasm.

“It’s my turn now,” he intones. And then his dick erupted, shooting rope after rope of hot, thick semen right into her ass! In the reflection on the window you can see the emotions flow across his slut’s face. The first was clearly a climax. Then she was shocked at how hot it was and how amazing it felt. Then she just couldn't believe he was still coming. He was holding perfectly still and only his impossibly hard dick was moving. It was bucking and pulsing against her asshole, shooting more and more of his spunk inside her. She shuddered when he pulled his cock away from her asshole before laying it between her cheeks. He leaned down and tenderly nuzzled her earlobe.

You realize that he hasn't fully stolen your fantasy yet. It was just the head, and maybe a bit of the shaft right? He never actually thrust all the way in.