She doesn't really wait for permission

While I'm still trying to think of a way out of getting ass fucked by my best friend's giant black cock, Susan manages to finally line the head up with my asshole. It was only then that I realized, before waking me, my wife had already been lubbing her new favorite sex toy up for just this moment. She thrust forward, and my asshole began opening for her.

"Oh fuck!" I managed to moan. The first time we tried anal in our switched bodies it had been painful. This felt worse.

Susan pushed harder and my ass continued to stretch around the head of that giant cock.

"Get on your knees," she whispered in my ear. "It'll be easier for both of us."

I couldn't talk, I just nodded in agreement. We'd gone to far to turn back now. I moved and my asshole pulled itself off of Mike's rod. I let out an audible moan that made my wife giggle. I then lay face down in a pillow and raised my ass into position.

"This is gonna be fun, baby," she said as she positioned herself behind me. "I promise."

I once again felt that hard cock against my asshole and I moaned into the pillow. She wasted no time pressing into me, and once again my hole began the process of stretching unnaturally around the head of my best friend's dick.

Susan went slow, but steadily forward. The pain was far worse than it had been when she had fucked me before, but that had been her asshole, which was not quite a virgin ass. This was entirely new for my body, despite everything that had happened before.

"Fuck you have a tight little boy pussy," she said, never letting up on the pressure. I could no longer tell how much of her was inside me. As she pushed deeper, she reached around and squeezed my cock. "Rock hard! I knew you would like this."

All I could do was moan into my pillow as she violated my ass. Sometime later she stopped. I could feel her thighs against my ass. The pain, that feeling of being ripped apart, subsided and once again I just felt that odd sensation of being full.

"Thats a good little boy," she said, patting me on the back of the head. "Now just enjoy the ride."

Susan began fucking me with my best friend's giant cock. The pain returned quickly, but I found two things surprising. While it did hurt more than it had with her ass, in some ways it was actually a lot more pleasurable.

I have no idea how long my wife fucked me in the ass, but sometime later, I was almost completely surprised when, without her touching me, I began to orgasm. I'd heard of men cumming from prostate stimulation, but I'd never experienced it before. It was the most intense orgasm of my life. My cock just exploded, spraying semen all over the bed. My vision blurred and darkened, and for a moment I thought I was going to pass out.

Susan continued to fuck my ass, and it seemed like I had an out of body experience. I was aware of her thrusting in and out of me, but I didn't really feel it. I just lay there and took it. It wasn't until she began to cum, which triggered a second hands free orgasm from me, that the sensation returned to my body.

She continued to fuck me until she had milked Mike's balls dry, and with each thrust I felt like my own cock would shoots justba little more cum onto the sheets.

When we were both spent, she slid out of me and we collapsed side by side in the mess I had made in the bed.

"That was fucking hot," she said.

I just lay there trying to breath.