You want to see your wife get fucked by another guy? Perhaps you might enjoy this story. My cock was so hard reading this story.
Warning, there is a little MMF stuff going on in that there is some MM interaction, but most of it is centered around her pussy, her tits.... her body and it is written by her husband.
Right in the middle of this story is this:
I knew she wanted to feel that cock in her again, and I love watching her fuck, so I suggested we move to the couch. Brian sat down and leaned back, his erection standing straight up on full display. I turned Maureen around so that she straddled him and I dropped to my knees in front of her. She stood between us, her legs spread, Brian and I right at the level of her crotch. She was very turned on and her pussy lips protruded well beyond her slit, hanging down in beautiful wet folds. I held Brian's cock upright and guided her as she squatted down on his erect member. I stopped her just when her pussy reached his cock and leaned forward to thrust my tongue between her lips and the dripping tip of his cock. I could taste them both as I first licked into her pussy and then slid my tongue down his length to his balls. I lowered her onto him slowly, watching his cockhead disappear into her vagina, then his shaft as it gradually slid into her. Her pussy lips spread more and more to accommodate the increasing thickness of the cock sliding deeper into her pussy. She moaned softly as he fully penetrated her, the large base of his cock stretching her cunt, his balls caressing her clit.
I kissed her deeply as she fucked him, and played with her nipples, which were bouncing up and down as he thrust inside her. She pushed me down, and I knew she wanted me to lick her while she fucked. I moved down her writhing body, swirling my tongue over her tits, and then her belly. Reaching her waist, I gently pushed her back against Brian. She leaned back against him and he cupped her breasts as he fucked her. I moved down to her pussy and just watched for a moment. Her legs were spread wide, and her pussy was completely open, Brian's cock buried deep inside her, his balls hanging below her. Her pussy lips seemed to grip the enormous base of his shaft, and they moved back and forth as he slid his cock into her in deep thrusts.