I could hear voices as I walked in, "God I love your cock, I want it in my mouth." It's my wife's voice, but not my cock she's talking about. I make my way quietly to the bedroom door, it's cracked enough to see her on her knees, stroking, then taking his cock into her mouth, teasing his balls as she takes him deep into her throat. I can't believe what I'm seeing, or how turned on I am by it. The pink thong I'd bought the only thing she was wearing, perfect nipples hard as rocks. The look in her eyes was one I'd seen before, pure lust, the look that said "I'm going to fuck you so hard you won't believe it." I could hear him moan as she sucked and stroked his cock. I could also feel the discomfort from the bulge that had developed in my pants. I can't believe how turned on I'm getting watching my wife with a strangers cock in her mouth, her right hand having found it's way into her panties. Wanting a better view I inch the door open a little farther, hoping they don't notice, for some reason I don't want them to stop. "God I'm going to come" he says, trying to pull out, but she wants it, grabbing his asks and deep treating him as he unloads in her mouth, sucking until she empties every last drop, so much it spills from her mouth, dripping off her chin onto her chest. "I hope you liked that" she says smiling, "I know I sure did." Pushing him onto the bed she crawls on top, kissing her way up his stomach and chest until their lips meet, a long sensual kiss. Having slid her panties off I watched as she lowered herself onto his still throbbing cock. Her pussy so wet and ready from her fingers he had no problem easing right in, I could hear her moan as she took it all. She sat for a minute, slowly grinding until she was comfortable and then started riding him, moaning louder with every thrust she made. Leaning back to give him a better view, she rode faster and harder, both of them moaning and grunting with pure lust. "I'm going to come" she screams, "Oh God yes, fuck me." I couldn't believe my eyes, or ears for that matter, I'd never seen her get off that hard before. I also couldn't believe I was jerking off watching my usually conservative wife getting the fucking of her life from a complete stranger. But she wasn't done yet, rolling over, her beautiful little ass in the air, "Fuck me from behind" she tells him "Fuck me hard." She screams as he rams his cock into her, but she's loving it, "God yes, like that, fuck me hard, yes, oh my fucking God." He continued until he couldn't take it, "I'm going to come" he growls, "Now," "Please come in me" she says, "Fill my pussy full." That's more than he could take, thrusting into her one last time, he moaned as he filled her full, she screamed as she came with him. I could see his thick load dripping out of her gorgeous, now gaping pussy as they collapsed onto the bed. Not wanting her to know I'd seen it all, I quietly snuck out and waited for him to leave. After ten minutes I went back in, "Hello" I yelled, "I'm home." "I'm in the shower" she yelled back, "You're home early." She came to me, still wet from the shower, wrapping her arms around me, greeting me with a long passionate kiss. "I'm glad you're home" she says, "I missed you." Dropping to her knees and sliding my pants off, "Let me show you how much."
Source: reddit.com/r/sexystories/comments/2w4tn2/mf_wifes_play_time