Several hours later, after we’d put the kids to bed and watched most of a movie with Eric and Serena, we each retired to our respective rooms. The bedroom set up was interesting. Each of our bedrooms was large and they were connected by a shared jack-and-jill type bathroom with doors opening into each of the bedrooms. The shared bathroom was huge, with a large shower stall, a jacuzzi tub, two sinks, and two separate toilets, each in their own little separate doored-off enclaves for privacy. Despite the size, the four of us tripped over each other a bit as we got ready for bed, clearly not used to sharing a bathroom. Amanda wore her normal sleep clothes, a pair of short pajama shorts and a cotton tank top. But when Serena came into the room to brush her teeth, she was in a black satin nightie that was as short as one could possibly be without revealing her ass and pussy. Literally every inch of her legs were visible, as was a fair amount of cleavage. I couldn’t help but stare, at least for a moment, and I could tell Amanda was similarly surprised to see her so scantily clad.
The second we were alone in our bedroom, Amanda commented, as I knew she would. “So apparently I didn’t get the memo that we were supposed to model our lingerie to each other. Maybe tomorrow I can wear that see-through thing you bought me and show everyone my vagina.” My wife is the most sarcastic person I know, so this was par for the course. I laughed and then decided it was finally time to share what I saw earlier.
“You don’t know the half of it. When I came back earlier, from the bike ride, I walked around the back. You know what I saw?”
“What?” I could tell I’d peaked her curiosity. I had her full attention.
“Let’s just say Serena and Eric were enjoying their alone time.”
“What?! They were screwing? Where?”
“In the main room, on the couch.”
“Are you serious?! Did they see you?”
“I don’t think so.”
“Were they naked?”
“Oh yeah. I could only see the back of Eric’s head, but Serena was bobbing up and down on his lap.”
“So you saw her tits?!”
“Um… yeah. It would have been hard not to.”
“Yeah, I’m sure it was a terrible experience for you. So that’s why you were hiding behind that tree, you peeping tom.”
I just shrugged.
“Do you think they wanted us to catch them?”
“I’ve been thinking about that all night. I think they must have. Or at least they got some kind of thrill out of the possibility that we might come back and catch them. Why else would they do it there, in front of the windows?”
“So they’re a couple of exhibitionists? Wow. How did we not know that?”
“I was thinking about that. I’ve known Eric forever, since well before he ever met her. I don’t think it’s him. I think it’s her. She was the one facing the window, putting on the show. She seemed to be…”
I didn’t finish my thought because at that moment I heard something. Amanda clearly heard it too because she looked in the same direction, toward the other bedroom. It had sounded like a moan. We heard it again. It was unmistakable. The sound of sex.
Amanda was the first to get up. She didn’t say anything. She just stood and walked toward the bathroom that connected our rooms. The door to our room was already slightly ajar. I watched as she opened it quietly and slipped into the bathroom. The sounds continued, a creaking of the bed punctuated by an occasional moan. After a minute or so, I too got up off the bed and walked toward the bathroom. I tip-toed through the door. The light in the bathroom was off and it was quite dark inside, but there was a sliver of light coming through the doorway on the far side, which was slightly ajar. I could see Amanda’s silhouette, standing just inside the doorway, peering through. I approached her from behind, slowly, until I was standing right behind her, looking over her shoulder. Although I knew what I was going to see, I was still not fully prepared for it. A lamp was on in the room, on the nightstand, providing more than enough light to see Eric and Serena in all of their glory.
Serena was on top of him, riding him. Her black nightie was crumpled up around her waist, her breasts completely exposed. Eric was cupping her breasts in his hands while she had her own hands planted firmly on his bare chest, supporting herself as she ground her hips into him. She was absolutely stunning and this was the most erotic thing I’d ever witnessed, by a mile. I’d never been more aroused.
If you’d asked me a week earlier how Amanda would have reacted to such a sight, I wouldn’t have had the first clue. She’d never given me any inkling that she had any voyeuristic tendencies; she’d never even had any interest in watching pornography, despite my best efforts to convince her. But it was obvious that she was incredibly turned on by what she was seeing. One of her hands was down between her legs, touching herself through her pajama shorts. I kissed her on the neck and her whole body seemed to pulse in response. I put my hands on her hips. There was no resistance. She wanted me to touch her.
As we watched them fuck, I continued to kiss her neck and caress her body, my hard-on raging, poking her ass through my boxers. Eventually I couldn’t take it anymore. I reached down and slid her panties and pajama shorts down in one smooth motion. She jerked her head around to look at me, about to protest, but then she seemed to stifle her instinct, and she turned her head back to the scene in the bedroom, without saying anything. That was as much of a green light as I was going to get. I pulled my boxers down until they dropped to the floor, lined up my cock behind her opening, and drove it in. She was already incredibly wet and it went in smoothly. She stifled a gasp as I pushed it in as far as it would go, until my abdomen was flush against her ass. I continued to thrust into her in long strokes, pausing for a few seconds each time I reached maximum penetration. With my hands, I lifted her cotton tank top up until it was above her breasts, freeing them for me to cup with my hands.
In the bedroom, Serena crawled off of Eric and got onto all fours next to him. She put her hands on the headboard and stuck her ass up in the air. It was clear that she wanted to be fucked doggy-style, and Eric wasted no time, maneuvering up onto his knees behind her. There was something so incredibly sexy about a woman choosing to be fucked doggy-style. I often had sex with Amanda in that position and she seemed to enjoy it reasonably well, but she never initiated it. Not once in the entire time we’d been together. Seeing Serena so clearly demand to be fucked that way, all without saying a word, was beyond arousing. I had to stop what I was doing for a moment so as not to come right then and there.
Eric entered her quickly from behind and immediately began thrusting aggressively. The slapping sounds were now audible and Serena’s moaning was getting louder and more frequent. She let go of the headboard and let her head fall down onto the pillow, her unbelievable ass now the only part of her body that was raised in the air. I could see that with one of her hands, she was now reaching up between her legs, stroking her clit as Eric continued to thrust into her. Amanda was doing the same, fingering herself as I fucked her from behind.
Serena was the first of us to come. She announced it, panting “oh god, I’m coming,” and shook for a few seconds from head to toe as the orgasm gripped her. Eric had clearly been holding out for her because just seconds later he grunted, said “oh god,” and then came to a stop. He came inside her.
The sight of them climaxing pushed Amanda over the edge, because a few seconds later I felt her clench up on my cock and let out an involuntary squeal, the first real sound either of us had made the entire time we’d been standing there. And the second it escaped her lips, she panicked, undoubtedly fearing that Eric and Serena had heard her and mortified at the prospect of being caught. In her reflex to flee, she pulled free from me. The problem was, I had been in the middle of coming myself, so just as she pulled away, loads of cum came shooting out of my cock. I tend to have a lot of cum under normal circumstances, but in this case, I hadn’t ejaculated in over a week and had been hyper-aroused all day. So I just drenched her. It landed all over her ass and legs, with much of it dripping onto the floor.