I had just turned 17 when our new neighbours moved in next door. Almost straight away you could hear them arguing when they left their patio doors open, mostly about money, but sometimes and embarrassingly when my parents were around, sex. My mum and dad were out doing what parents do on a weekend and I was sat at my bedroom window, having just woken up. My window was open and I could hear the neighbours arguing again. I couldn't believe what I was hearing. She was asking him to allow her to fuck other men. She was telling him his cock wasn't big enough for her anymore and that she wanted to have sex with bigger more well endowed men. He stormed out of the house, but not before and I heard him say it "If you're going to fuck other men, then I want to watch". I was still in my bedroom when she went out into the back garden to hang out some washing. Remembering what she'd said I looked out the open window and whistled, when she looked up, I accidently on purpose let the towel I had wrapped around my waist, slip off. She could see I had a semi erect cock when I stood up and feining embarrassment I said sorry. I didn't put the towel back on immediately though and gripped my cock until it became fully hard. From where I was stood I could see her touching herself through her skirt and when she smiled at me, I thought nows your chance. Putting my head out of the window I asked her if she wanted any help, I was still naked with my cock bouncing up and down in front of me when she replied "Only if I can help you".
Jenny's husband wasn't there the first time I fucked his wife. She wasn't the first female I'd fucked, but she was by far the best, even to this day she's still the dirtiest slut I've ever fucked. After I'd walked round to her front door with only a pair of shorts and flip flops on, she let me in and within a ten seconds she had my hardening eight inch cock in her mouth. It wasn't that first time when I learned how much of a filthy slut she could be, she was too eager to have me fuck her straight away, so when my dick became solid and was straining, she lead me into her lounge, bent over the arm of the couch and moved her knickers to one side. As a teenage lad with lots of testosterone flowing thorough me, I burried my cock deep up her wet pussy. She was going mad and begging me to give it to her and for about ten minutes that's just what I did. She didn't even have me pull out when I was banging her as she lay on her back on the floor. She'd cum once already and when I unloaded up her snatch and then pulled out, she began to masturbate herself, sticking two fingers up herself and furiously frigging her clit. It's the first time I'd seen a woman squirt.
The following week when I got home from college, I would call by to see if Darren her husband was home. On three occassions he wasn't and on those occassions I fucked her all over her house, each time she wanted me to fuck her in a different way. It was when I was on my back and she was riding my cock at the top of her stairs, that Darren caught us. I thought he was going to beat the shit out of me. Sitting down a couple of steps down he took his dick out and began to masturbate. I knew why Jenny wanted a bigger cock, his was only about five inches when fully erect. Darren watched us fuck for the next five minutes until I shot my load up his wife. When I got up after she'd licked and sucked my cock clean, I calmly walked past him, my dick only inches from his face.
That was the real start of my nine months of sex with the pair of them. Nearly every oportunity to have sex with them I did. Darren never got directly involved, unless you count him licking and sucking his wife's pussy clean after I'd fucked and cum inside her.
Jenny was always up for different sex and it was her arse that I first fucked. Remembering watching Darren eat out my cum from her arse still gets me horny, but not as much as actually fucking her as hard a I wanted up her arse.
They eventually splitt up, not because of me and our sexual times together. It was because he moved in with another guy, he'd become a gay man.