Note: This story was dynamically reformatted for online reading convenience. We Have a Regular Male Threesome Partner My wife and I have a regular male threesome partner who eventually moved in with us. During the last four years, he and I have done everything we could to make my wife cum harder, and as many times as possible. She loves us to treat her like our "fuck-machine." She wants us to use her body every way we can think of. One afternoon she even told us that she loved being our "submissive little fuck toy," and wanted to become a "24/7 sex slave" for us. The three of us have so much fun doing kinky stuff like that. He and I began tinkering with her sexual response. We discovered a way to condition my wife and amp up her up, to make her cum harder and more intensely. We did that using what I guess would is called "orgasm denial." We also learned how to make her cum more frequently, less time between orgasms. Over a period of a couple years, my spouse's sexual stamina kept on growing until it seemed as unlimited as her capacity and desire for pleasure. Eventually she wanted our housemate and me to fuck her all night long. Our three-way marathon fuck-and-suck sessions extended well into the next day. My wife simply refused to allow us guys to stop pleasuring her. It was so incredible how we were able to transform her into a nymphomaniac who could cum, and cum and cum. She has become the life support system for a living, breathing orgasm engine. I remember one particular time when our housemate and me had her between us, his cock going in and out of her pussy, as my cock slid deep down her throat, and out on each stroke. Our housemate looked at both of us, then said, "You know guys, doing this threesome scene with you is the nastiest fun I've ever had. It's the best!" My wife groaned, "Yes!" in agreement. He continued, "Like now I don't even care if I cum when we do these fuck and suck marathons. I just wanna keep my cock slamming her pussy like this for fuckin' ever." My wife nodded her head "yes" without missing a stroke. I replied, "Yeah, I know. When you are fucking her pussy really hard, my little wife gives the best head I've ever had. Gawd, I love face-fucking her hard. Just like this." I grabbed her head and started thrusting my cock in and out of her mouth... as deep as I could. At the same time our housemate began to repeatedly slam his dick into her as hard as he could. Both of us were pushing our dicks into her as hard as we could at the same time. We almost lifted her body up off her hands and knees. Looking down on her back, it looked like our dicks might collide in the middle. She loves that kind of sex. After a minute of that exquisite sexual torture, my wife's moans turned to muffled screams as she started cumming... and cumming... and cumming. The housemate and I have learned that she wants us to keep fucking her pussy and mouth as hard as we can until she quiets down, indicating that she has finally stopped cumming. Eventually he and I both stopped moving, and grasped for air. She needed to catch her breath, but wouldn't let either of us extract our dicks. My darling looked me in the eyes, and smiled (despite having my dick in her mouth). The housemate smacked her ass cheek with his hand. My wife is one of those women who love to be spanked while ya fuck her. A few minutes later my wife took my cock out of her mouth and teased it with her tongue. Then she said, "Hey, are you guys willing to do something for me?" Our housemate and I both eagerly replied, "Sure. Fuck yeah. Anything ya want." She said, "I love when we all cum at the same time. When both of you start to cum in me, it makes me cum instantly. Can we try to do that next?" She put my cock back in her mouth. Of course, the housemate and I were happy to do as she wanted. Now it's not always easy to make two people cum together, and three is even harder. We found that to do it we have keep her right on the edge, until our housemate is ready to cum. Then me. The housemate and I nodded in agreement. My wife smiled and started playing with my cock. Our housemate moved up on top of her ass. He likes to cum inside her that way. I waved my cock in front of her face, and she let my hard dick slide into her mouth, down her throat, and left my cock there few seconds. She slowly backed it out until the head was in her mouth again, then the next stroke she let my cock go down further. She knows that's my favorite way to get my cock sucked. It feels so nasty. Less than five minutes later, I heard my wife start groaning, "Yeth, yeth." Our housemate started fucking her harder and deeper. It looked nasty too. Our housemate started pounding her ass like a pile driver, and she made even more guttural sounds. I was ready to pop. Our housemate climbed up on her ass even more, and his eyes rolled back in his head. My wife was screaming too. He started cumming. I popped next, and it felt like I had a fire hose in her throat. We were all cumming as he and I thrust both cocks into her as deep as we could. We both keep jamming our cocks into her holes at the same time. We slammed her so hard that we lifted her body right up off the bed. My wife loves it when we are rough with her in bed. As we kept pounding her mouth and pussy, she seemed to cum on every stroke. Both of us guys unloaded every drop we had into her. We slowed down, and finally stopped, with a big sigh. Ever seen a steam powered train shutting down? It was sort of like that. My insatiable wife was still in the mood. She still wanted more cock, so she clamped down on my dick that was still buried deep in her mouth. My cock was being held hostage. She is insatiable. If there were ten or twenty more guys here, I think she'd want to do them too. She's wonderful. She finally let go of my dick, and our housemate made his escape. I thought, "He can run, but it won't do him any good." She has control of what both the housemate and I want. Our housemate returned to the bedroom with some drinks. We slammed down the juice, and my wife wanted to know if were ready for another session. It was 7 AM Saturday. He and I had fucked my wife all night long. I knew she had had dozens of orgasms over the last 12 hours, but she was still wanting to fuck. I figured the scene could go on until noon... or later. I love it. We all do. I told the housemate maybe we should tag team her, after both of us got a little rest. He said, "Yeah, OK. Ya know what, dude, this is our own damn fault. We were the ones who turned her into this insatiable sex maniac." My wife piped up, "Oh my. Are you two all worn out? Maybe we need to bring in some younger guys? You know... to help you two old farts take care of my needs? Please gimme my red dildo... the big one." I was unable to move, so I couldn't hit her or anything. Our housemate rolled over to the edge of the bed. He was looking for what she asked for. He handed my wife her humongous gel dildo. She spread her pussy lips with her fingers. Cum was oozing from that well used orifice, so that monster sized phallus easily slid in deeper and deeper, until only the last couple of inches were showing. She closed her eyes, squeezed her twat muscles, and the giant dildo raised up higher and higher. Then she pushed it back in... all the way. She did that several more times, going faster on each stroke. She breathed in deeply on the down stoke, and blew out on the up stroke. Then, using both hands with that huge dildo, she really started pounding her pussy. The housemate and I watched in amazement. How could any woman still be so horny after fucking both of us all night long? He and I looked at each other, then shrugged and started chanting, "We're not worthy. We're not worthy." Moving up by her head, I got down on my knees, and with dick in hand I began wacking off. When I put my semi-hard cock up to her lips, she took my dick like a starving baby critter. Our housemate got on his knees on the opposite side of her head. She alternated sucking on both of our dicks Soon she had both our cocks harder than Chinese algebra! So I pulled my dick out and moved down to her crotch. He grabbed both of her feet and spread her legs open for me. I pushed her dildo deep into her pussy while fingering her clit. I ran my tongue around the rim of her tight little asshole, and tongue-fucked her ass. Getting up on my knees, I lubed my dick with cum and the juice from her pussy, then slowly and gently pushed my dick into her ass. When the head popped past her sphincter, she started pounding her pussy again with her rubber boyfriend, and screamed at the top of her lungs, saying to fuck her ass as hard as I could. To keep her from waking up the entire neighborhood, our housemate shoved his huge dick all the way down her throat and face-fucked her. Gawd, doing this so much fun!