Part 1 here

Part 2 here

We all fell asleep together in Adam and Kristen's bed. She'd slipped on a comfy two piece pajama set that showed off her sexy midriff. He found a pair of boxers for himself and some gym shorts for me.

I woke up as light started coming through their window. I looked over at the two of them, she was between us. They were both still sleeping on their backs, it looked like maybe they were holding hands in their sleep (how cute!).

My eyes traced the outlines of both of their bodies. First hers. Delicate. Feminine. Amazingly sexy. Her whole body just seemed to flow. His was well defined. When I took the time to actually look, I noticed again that his arms and legs were that long lean muscle. He shaved everything but his head, and I'm starting to think it's because he knows how sexy his body is.

He also has morning wood. It looked every bit as exciting as enticing as it did last night. I put two fingers to my lips, gave it a quick kiss, then reached over and put those fingers on his lips. Not quite awake, his lips still kissed my fingers. I turned them slightly and put my fingertips in his mouth, as I'd hoped, he started making out with them. His tongue ran the length of my fingers while he sucked gently.

The motion must have woken Kristen up, because when I looked down she was smiling up at me. (damn, that smile could stop traffic). She whispered at me "I haven't needed this much sex since high school. Think Adam will want to go again?"

I pulled my fingers out of his mouth with a little pop. I raised my eyebrows a little and said "Yeah, I think he could be convinced." and leaned down to kiss her.

Our lips met and her tongue darted in my mouth. I put my hand up her shirt and squeezed her tits gently. She broke the kiss to moan when I did. "Damn Kristen. Have you always been this easy to get going??"

She started "Not always, but you and Adam just..." She closed her eyes, arched her head back, and groaned when I pinched her nipple mid sentence.

"Oh, fuck you... Yes the two of you know how to get me off" she managed once her thoughts recollected.

Adam was fully awake now. He pushed his head towards mine, letting us make out for a moment. I heard Kristen starting down her orgasm noises. It took me a second to realize that Adam had his hands down her shorts while we were kissing.

Her eyes closed, head and back arched (doing delightful things to her chest), she rubbed against his fingers until her whole body shivered and shook.

"Kristen, that's absolutely impressive to watch." I said.

She blinked hard a couple times, flashed that smile of hers and said "Glad you enjoyed it. The rules are the rules though. Adam got me off, so he gets to fuck me first"

She was out of her top a moment later, and while I was staring at her chest she managed to get her bottoms off. By the time I looked over at Adam he'd already gotten naked (damn, missed the show).

Adam was making, what can only be described as, happy noises when she pushed him on his chest. He followed directions well, and fell to his back. His head slightly off the bed.

I was at his feet, I got the amazing view of watching her. She positioned herself over him and almost glided down. She rode him cowgirl, hands on his chest, rocking back and forth on him.

My own dick was in need of attention by now. I moved to the other side of the bed, kicking off my shorts as I moved. When I was in position I massaged Adam's cheeks and forehead with my cock.

He opened his mouth and I slid my dick in. I pushed a little harder than I should have and he choked. I winked at him "Don't worry, it gets easier" I pushed in and out while he sucked on my, doing my best not to gag him (still failed now and then)

I looked up just in time to catch Kristen cumming again. That must have pushed Adam over the edge. I felt his mouth close more than it had, his eyes close, and his hips push her up a little higher.

I pulled my dick out of his mouth. He must have started sucking again because I felt that familiar 'pop' when I pulled out.

I spoke a little louder than I meant to when I said "Kristen, put that ass this way."

She looked shocked at first but then something in her changed. She smiled again, but not the regular smile, a sly toothless smile. She answered in a nearly velvet voice "Yessss, sssirrr"

She spun around, at the same time Adam moved up on the bed a little more so his head would be supported.

I smacked her ass as soon as it was in position. She yipped a little when I did, but then shook that sexy butt at be again. "oh, you like that do you?"

Again, she used her bedroom voice "umhmm, yes sir. Spank me while you fuck me"

Not one to refuse a lady, I smacked her ass again. An outline of my hand was there soon after. I lined my cock up to her wet slit and slid in. I could feel Adam's cum working as lube while I pushed my dick deep inside of her.

She bounced a little as we found a rhythm. Deep, deep, shallow, smack...

Almost like clockwork, I could tell she was getting close to cumming again. I beat her to the punch, smacked her ass as hard as I have all morning and pushed deep. I came in her a second later. As predicted she moaned and orgasmed at just about the same time.

I didn't realize until after that while I was fucking his wife, Adam was licking her clit.

I pulled out. We all collapsed, again, on the bed.

Adam said "That was so fucking hot, her submitting to you like that."

Kristen caught her breath "agreed... Next time... We gotta do it next time too..."