Next Door
Copyright© 2026 by Wolf
Chapter 4: Running
Erotica Sex Story: Chapter 4: Running - New house, new neighbors, new rules. They open their marriage yet live in suburban normalcy. They push their boundaries aside with consent, curiosity, and a growing sense of community. Their group of friends expands with erotic adventures. They grow in multiple dimensions, mostly about their ability to love and savor their lust, first with each other and then with the others.
Caution: This Erotica Sex Story contains strong sexual content, including Ma/Fa Mult Consensual Romantic BiSexual Heterosexual Fiction Cuckold Slut Wife Wife Watching Incest Group Sex Polygamy/Polyamory Swinging Anal Sex Cream Pie Double Penetration Exhibitionism Fisting Oral Sex Sex Toys Voyeurism
Sunday morning, I decided that I needed some aerobic exercise other than sex. Ally looked at me like I was crazed by the heat or the fog from the morning sex we’d enjoyed. She passed up going on a long run with me, although she and I did do runs together. I suited up in athletic shorts, a singlet, and my Nikes, and headed out the door.
I got about twenty feet, when I heard a shout, “Hey, wait for me. I jog, too.” It was KC. She was similarly dressed and coming out her front door looking as fresh as a daisy.
“You run much?” I asked in a surprised tone as we started to trot out of the cul-de-sac side-by-side. I held back on my pace a bit. This coincidence couldn’t have been planned. I didn’t get the idea to run until fifteen minutes earlier.
KC’s running outfit was provocative. Her jugs were hidden in a sports bra, but the wonderful jiggle remained. The running shorts she had on were snug on her shapely ass and pussy, so much so that her camel toe was noticeable. Her little ass was spectacular. The tight shorts emphasized her lithe legs. I’d try to run behind her often.
KC responded to my question, “Yes, I run a few times a week depending on mood and weather. How far are you going?”
“Ten miles. Over to Citrus Park and then return along the river. If that’s too far for you, we could do a shorter loop and then I could go on to finish my longer run.”
KC said, “No, I like you circuit, and that’s a good distance for me. I want to be with you, plus I have sins to purge from my system.”
“Sins? What’d you do that you have to atone for?” We were already jogging along at a good pace. I realized that I’d set myself up for some more heavy flirting after my dumb question.
“Well, last night I stripped naked so that another man and woman could see me in my birthday suit, and in doing so I had a dozen mini-orgasms because I was so turned on. After I left them, I went home and masturbated two times because I was so horny. I fantasized that the man I’d been with made love to me and gave me multiple orgasms, too.” She shot me a devilish look.
I almost missed a step wondering whether to reply or not to her confession of lust. I decided to get cutesy. Looked at her and made the sign of the cross and held a hand over her head during our trot. “Sister, the Lord is full of grace, and you are hereby forgiven for your sins. Say ‘Good morning’ five times, and sin no more for the next half-hour.”
KC laughed, but added, “I’m serious about my invitation. I have a huge crush on you and it’s only getting more intense.”
We went for a couple of hundred yards in silence. I said, “KC, I like you, too – a lot; and I am happily married to Ally and have no desire to rock that boat with a ‘side dish’. Something tells me that you wouldn’t do well as the ‘other woman’, in any case. We’re becoming good friends and I’m glad about that.” I left my statement at that, hoping that we could be platonic neighbors.
I slowly stepped up our pace after that first mile to discourage conversation and her further propositions. KC struggled a little harder to keep up. We both needed more oxygen and after a half-mile at the faster pace, she had stopped her vociferous flirting and propositions. I’d been right.
The few corners or streets where we had to slow or stop to cross were obviously welcome pauses for her, since she got a chance to take a momentary rest and gasp in some valuable air.
We got back home from the ten-mile run after 74 minutes, meaning we’d been doing sub-eight-minute miles for the ten miles we ran. For me, that was an aggressive pace.
As we pulled up at the house, KC fell onto the lawn and rolled onto her back with her legs and arms spread akimbo as they fell. She panted hard and eventually moaned, “I have never run that fast for more than a few seconds. Thank you. That was a great loop. I’ll lie here and die. Please, water my plants.”
I laughed as best I could as I leaned over with my hands on my knees panting only a little less than KC. Both of us were sweaty and overheated. Eventually, I stood and walked in slow, large circles around KC to cool down.
Ally saw us and had come out of the house. She had water bottles for each of us. Upon hearing KC’s remarks about the run and dying on our lawn, she laughed. Ally was only clad in a thin t-shirt. Her long shapely legs were on full display and as usual I found her arousing. Given that KC was on the ground on her back, I speculated that she got a good view of Ally’s pussy, but that didn’t upset me in the least.
I paused in my cool down and explained to my wife about KC starting her run as I did. I made sure she knew there was no collusion to go off together.
Ally looked at the panting pile of female flesh still flat on her back on our lawn and laughed. She said smugly, “I take it you worked her over?”
I whispered to her but KC could probably hear, “She flirted and propositioned me at the start of our run. I wanted to stop further comments or invitations, so I lured her into going at a faster pace than she was used to. We did ten miles in 74 minutes.”
Ally understood and smiled. “Good strategy, and I think it’s cute that she’s so blatant about wanting your bod. I bet she’s a little jealous that we fuck all the time.” She turned to KC, probably flashing her pussy slightly under the tee, “Do you know that we make love several times a day when we can?”
I was floored with my wife’s blatant admission regarding our sexual behavior. Why would she share that with a relative stranger, especially if they were a neighbor. That person wanted sex with me, and Ally was rubbing her nose in the fact that we did that often.
KC had actually heard that discussion. She sat up and laughed. “Yes, and I’m damn jealous because I’m horny all the time and need somebody like Doug on a constant basis. I know you’ve got ‘rights’, but couldn’t you share a little of him with me every now and then.”
Ally laughed harder and teased, “Maybe someday.”
I did my eye roll thing at the two of them. I announced my plan to swim to wash up and relax, so I went inside to shed some sneakers and my singlet. I again wondered why Ally wasn’t more upset about KC’s advances and obvious desires for me.
When I came out to the pool, I found two mermaids floating around. Ally was naked and KC was in her undies. KC’s breasts were on full display again – along with every bit of my wife. There was a pile of KC’s sweaty clothing and sneakers near the side of the pool along with Ally’s t-shirt. Ally must have approved this nudity and known it would affect me. She didn’t react adversely when I stared at the two of them for a minute.
When the girls stood at the shallow end of the pool, I could see that KC’s underwear had become transparent. The two together belonged in some erotic photoshoot on the Internet. I responded, of course, getting a near instantaneous chubby. I wanted Ally immediately, stretched out on one of the pool chaises so we could make love. I had similar desires for KC and pushed those aside lest I get more embarrassed at my condition.
I dove in and started to do some lazy laps in the pool as the girls floated around and talked, and my arousal dissipated. Sometime, during my laps, KC decided to dispense with her undies, because I saw them on the edge of the pool when I stopped my laps.
Eventually the two naked nymphs sat on the edge of the pool with their feet in the water. I could hear them planning a shopping trip for later in the day. I thought that they looked spectacular sitting in the bright sunlight fully exposed and obviously alert.
I contrasted the two, and Ally could see and probably guess what was going on inside my head. Ally had small, pert nipples on small quarter-size areolas, perched atop her gorgeous perky globes. KC was almost the opposite – large, end-of-finger size nipples atop large, dark areolas two or three inches across, and with a generous supply of tit flesh. The four tits were alert and pendulous, but barely saggy. I did want to play with them. I had some fantasy about sucking on the four simultaneously.
I moved near to talk and get a closer look. I’d no sooner gotten near them, when KC blushed and said, “I have a confession to make to the two of you.”
Ally looked puzzled, “Confession?
“Yeah,” KC glanced at her house and said in an embarrassed tone. “I can see the pool and Jacuzzi from my bedroom window, as you can figure out from the orientation of our two homes. I’ve watched you two make love and do sexual stuff out here several times. You both turn me on.”
Ally chuckled before I could respond. “Our bad for not looking around or not for taking it into the bedroom.”
KC rapidly said, “Oh, please don’t change. You turned me on so much that I want lots of repeat viewings. Know that I am happy to be a lascivious voyeur of your sexual acts, and I beg you to do it more often. If you’d let me know when somehow, I’d be in your debt forever.”