(All persons engaged in sexual activity in this story are over 18 years old. Any similarities between this story and real people are purely coincidental)
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Ryan lived across the street from an attractive young couple, Fred and Stacy. Fred was on the road a lot, but Stacy was home most evenings after work. She'd usually get back about 6 and go for a run, Fred arriving later. He would sometimes pass her on his own nightly run. They'd either wave or stop for a brief chat. She was about 5'6'', with short brown hair that lay on her shoulders. Her breasts were full, pressing against her running top, her ass encased in tight running shorts. He would always get a good look at her ass when she passed him on their runs, or when she and Fred washed their cars every other Saturday. He'd be sure to be home to watch that. She'd usually be wearing a tank top, her tits spilling out of it, and cut off jeans that barely contained her cheeks. He tried not to be creepy and stare at her, but since his wife left him two months ago he'd become especially horny. And Stacy was really hot. Tall, very fit, a lithe body and cute face. She had an especially nice ass that he stared at every chance he got. And she was sort of flirty with him, or at least he thought so on several occasions when they'd be running at the same time, even though he was at least 6 years older than her. Fred was a nice guy, though he rarely saw him and thus interacted with him less than with Stacy, who was often home alone for stretches.
One day late in the summer Fred knocked on his door and asked to talk with him for a few minutes. Ryan let him in and offered him a beer, which he took. They chatted about sports for a few minutes before he told him that he was going out of town for nearly a month, a long business trip out west. He wasn't happy about it, but it was a good job and he couldn't say no, of course.
"So, Ryan, I was wondering if you could do me a favor and keep an eye on Stacy for me. Make sure she's ok and all. In case she needs anything, maybe you could help out."
"Sure, of course," he said. "I'm pretty handy if there's anything she needs fixing at the house. She should feel free to ask me."
"Well, that's great. Thanks. The thing about Stacy is that she.... Well, she has a very active sex drive. I worry about her straying. So, here's the thing. You're older and not someone who threatens me, ok. So, if she comes on to you, then it's ok with me. In fact, I told her that your wife left you and that if she needs some company, then I'm ok with her being with you. I know it's weird, but it's a better solution for me, and for her. I want her happy, but not too happy, if you know what I mean. The only limitation is this -- no intercourse. That's our only condition." He paused after that long explanation and looked at Ryan, waiting for a response.
"Wow, that's interesting. But really cool of you," Ryan said, after hesitating. "Listen, I like you two, you're the only cool people on this street. So I'll just say I'll keep an eye on her, and if she asks, then great. But I won't make the first move, ok?"
"Yeah, that's good. But I know she will. She feels bad about your wife leaving and all. So it's cool. I'm cool with it. Except for that one thing."
"I understand. Great, well, have a good trip, Fred, and don't worry about anything."
They shook hands, Fred thanked Ryan for the beer, and then he went across the street. Ryan closed the door, thinking about what he and Stacy could do for a month, everything except him putting his cock in her cunt. But that didn't preclude him from putting his cock in her ass. Or in her mouth, or between those big tits. Or getting a handjob, or sliding his cock between her asscheeks. Lot's of possibilities, if she was game. And he had a feeling she would be, judging from some of her looks. Ryan was very fit, always lifting or running. He looked more buff than Fred, in fact, who had no time to work out. He suspected that Fred had trouble keeping Stacy satisfied, which made it important that she not stray while he was away. Well, he'd find out soon enough, as Fred was leaving the next day. It could be an interesting 4 weeks, Ryan thought, his cock swelling in his shorts at the thought of stripping off Stacy's halter top and panties and diving between her thighs to taste her juicy cunt. He'd want to slide his cock into her wet hole but couldn't, so he'd lick her asshole and get it ready to take his cock inside it. He'd fuck her tight ass while she rubbed her cunt to orgasm, his cum shooting inside her ass as she came. Ryan resisted the urge to jerk off, needing to turn to other matters. But he looked forward to seeing Fred leave, and to seeing what Stacy wanted.
The next night Ryan went for his evening run, hoping to run in to Stacy along the way. They both tended to run at dusk, about 8, perhaps for the quiet of the post-rush hour streets. He went through his regular route, some flat sections and a few good hills, before turning back to home. When he got there, he found Stacy standing in her driveway, wearing one of her sexy running outfits, this one a pink top and light blue stretchy running shorts. Jesus, she was hot, Ryan mused as he approached her.
"Hey, Stacy, how are you?" Ryan said.
"Great, just finished my run. I thought I might see you on the route," she said.
"Yeah, me too. Must have gone in opposite directions."
"I think I may have pulled a calf muscle along the way," she said. "Would you mind coming over to look at it, perhaps after your shower?" she asked, noticing the sweat dripping off of him. "Fred said you worked in physical therapy."
"Of course, I'd be happy to. I'll be over in a half hour or so," he said, eager to rub her calf and maybe more of her hot body.
"Great, see you then," she said with a smile, her nipples straining against her pink top.
Ryan took a long shower and then headed over to Stacy's, with a bottle of wine in hand.
She let him in and poured a glass of wine for each them and they sat on the couch and talked while sipping their wine. She didn't bring up Fred or mention what Fred had said about it being ok to be with him. They both knew they had the green light. She was wearing a short beige skirt that hung just above her knees, and a white blouse, against which her breasts pressed, clearly not constrained by a bra. He wondered if she was wearing any panties.
"How's the calf feeling?" he asked, after finishing his wine.
"Not bad," she said. "Still a little sore."
"Want me to take a look at it?" he asked.
"Yes, thanks," she said, after taking her last sip of wine.
He got on his knees in front of Stacy and began to gently rub her calf, from the ankle up to the knee.
