Carl and Paula had found themselves very excited by each other's adventures with Kevin and Miriam. Both couples seemed pretty mutually satisfied by the experiences, Kevin reported to Carl that his and Miriam's sex life had gotten a lot more varied and Carl was pleased to be able to report the same. After Paula's experiments with Kevin, the night that Carl was taking Miriam's anal virginity, they'd gotten a lot more involved with bondage. She'd even become more enthusiastic about having him spank her! Tying Paula up was one of his new favorite things to do, and finding new ways to do it.
To both couples delight their friendships hadn't been hurt by it either; in some ways it had served to actually make them closer to each other. All of them were able to be completely frank and open with each other, as well as comparing notes and giving new ideas. It made for a fantastically renewed sex life for both couples.
One night, about a month after they'd had their switch with Kevin and Miriam, he and Paula were cuddling in bed after a particularly intense session in which he'd hogtied her, fucked her ass with a cucumber, and then with his dick. It had been amazing sex, something that they probably wouldn't have tried before their experiences with the other couple.
Paula tensed in his arms and he knew that she wanted to talk about something.
"Honey, I've been thinking..." she paused and he waited, knowing that she would just spit it out eventually, "I've been thinking about our swaps, and some of the stuff that we've done with them and with each other..." another pause. "And I was thinking that it might be interesting to all get together one Friday night. All four of us."
"You want all four of us to have sex?" he asked, both surprised and delighted by her suggestion.
"Yes," she blushed prettily and he felt his dick twitch, "Miriam and I have talked about it and we've both been wondering what it might be like to be with two men at once.... and maybe what it might be like to... um." Her blush deepened, "Be with each other."
The little general was standing at full mast now, and rather than giving her hand answer he rolled on top of her and fucked her hard and brutally to climax. As they lay panting at the end of it, his heavy weight still resting on top of her, he told her, "You're a delicious slut."
Smiling up at him, she wrapped her hand around his neck, "I take it that's a yes."
"Oh yes," he grinned, "As long as Kevin agrees."
Of course Kevin was up for it, as they found the next day. Paula and Carl had sex constantly over the days leading up to the weekend, hornier than ever.
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Meeting together, all four of them was rather odd at first. They decided that they wanted to watch in person as they swapped wives. Laying down on the carpet next to his wife and his best friend was rather odd, but he did have to say that it turned him on to watch them kiss and fondle each other.
"Hey you," Miriam nudged him, "We're supposed to be doing that too..."
Carl blushed as he realized that he'd gotten so wrapped up in his wife and his best friend that he'd almost forgotten about his best friend's wife. "Sorry," he said, seeing Kevin and Paula smile in their direction out of the corner of his eye.
His dick was already hard as he began to suck on Miriam's nipple, feeling her shudder as his teeth sank in. Very quickly the room was filled with moans, he could see Paula watching him as Kevin fondled her body, her eyes locked on where his mouth was suctioned to Miriam's breasts. Getting an idea, he pulled Miriam up and put her on all fours so that she could watch as well as Kevin lifted Paula's legs over his shoulders and lined up his dick. Paula could watch Miriam's face as her pussy was invaded by her husband, she could see it when Carl began to slide his own dick into Miriam's pussy. Taking Paula's wrists in his hands, Kevin held them above her head as he began fucking her, her body bent almost in half with her torso stretched out in front of him.
Watching was making Carl very hard, he reached around and started tugging on Miriam's nipples roughly, twisting them hard as he brutally thrust into her pussy. His best friend was fucking his wife right in front of him... and he was fucking his best friend's wife. Paula's breasts were flopping all over the place as Kevin pummeled her pussy, her face was screwed up with passion and she was moaning loudly. Those erotic moans spurred him on to treat Miriam's body rougher and rougher - which she enjoyed immensely, her own moans filling the room.
