Mike, my BFF

Susan grabbed the phone out of my hand and punched something into the app. A moment later her body morphed into that of my best friend, Mike. He was something of a ladies man, and now I could see why. Mike was a very fit black man with a rock hard six pack and very muscular chest and arms. He was also hung like a fucking horse, a fact I did not know until that very moment.

"Holy fucking shit!" Mike (Susan) exclaimed. "Mike is a mutant. That things has to be thirteen or fourteen inches! How does he even get it in his pants?"

"I had no idea," I said, in awe.

"I really want to put that in you," she said. "Its probably gonna hurt. I know my pussy...and I don't think its gonna take all of that. But fuck I want to try. God, I had no idea how guys feel when they are trying to get laid. Its like the cock is making all the decisions."

Before I even knew what was going on, Susan leaned forward and slid the head of Mike's cock into her pussy. Just the head of his big black monster made it feel like my pussy was being ripped in half. But it also felt amazing.

"Oh, fuck thats so tight," she said.

She pushed deeper and to my surprise her pussy continued to stretch around her giant cock. I started to orgasm almost at once, and she just continued to press deeper inside of me. All I could do was moan and try to breath.

"Oh my god this feels so amazing," Susan moaned. "I feel so strong and dominate. I just want to fuck the hell out of you."

I couldn't protest, I was still caught somewhere between pain and an orgasm, so my wife started to fuck me in the missionary position. I just moaned, loudly.

It was a little surreal. Mike and I had been best friends since the first grade, and not one time had I ever imagined him this way. But there he was between my legs, a black god with a chiseled body and an enormous cock, working up a sweat as he fucked me.

I don't know how long it went on for, but it felt like an eternity. I know it was at least a half hour. Susan pounded her own pussy with Mike's cock, giving it a better and longer fucking than I had ever managed. At some point it got to be too much for me, and I'm sure I blacked out for a few minutes.

"Oh, John, I love you," Susan moaned, but it was strange hearing it like that from Mike.

And then his muscular body tensed and I felt a rush of warmth inside me. Susan kept pounding, draining more cum into me than I had thought was even humanly possible, and all the while I continued to orgasm.

At last she was spent and her cock slid outbof me. Susan collapsed into the bed next to me, sweaty and out of breath. My pussy was still spasming, and I could feel a mixture of our cum running down my inner thighs and pooling on the sheets below my ass.

It did not take long for us to drift off to sleep in the wrong bodies.