She design the app to help awkward people flirt. She didn’t know her husband had coded it to share her with their three oldest friends.
I want to be honest with you about what happened that night in Kentish Town. I’ve been trying to find the right words for weeks, and I think the only way to do it is to just say it plainly. I fucked Sam’s wife. She wanted me to. Sam wanted me to. And it was the most intense, most intimate, most genuinely erotic experience of my life, and none of us have been quite the same since.
I’d wanted Lena since second year at UCL. Anyone who says they didn’t notice her the moment she walked into that seminar room is lying. Small, dark-haired, with a chest that drew every eye in the room and a mind that kept them there. She and Sam were solid from the start, clearly made for each other, and I respected that completely. I kept my distance. I filed the want away somewhere quiet and left it there. For three years I looked at her the way careful men look at things they can’t have: briefly, and with great discretion.
Then Sam invited us to the beta test.
Greenlight is a real app. A genuinely smart adult social game built on consent mechanics and escalating heat levels, designed to help socially anxious people flirt and connect in structured, safe ways. What none of us knew walking in that night was that Sam had built a second layer underneath it. Hidden modes. Experimental settings. A permission architecture that went far beyond the public build. He’d coded the fantasy they’d both been carrying into the back end of their own product, and tonight was the first time either of them was going to see what it did.
By the time Pippa left, by the time the app had escalated to levels none of us had expected, by the time Chester came out of the crash room looking like a man who’d just seen God and Theo came out looking like a man who’d spent three years making very specific jokes and had finally been given exactly what those jokes were always about, I understood what the night actually was. This was Sam giving Lena something she’d always wanted. And it was Sam giving us permission to be part of it.
When Lena looked at me across that lounge and said my name, when she told me I’d been waiting long enough, when she took my hand and led me into that room with Sam following behind because she wanted him there, in the room, watching, I felt every one of those three careful years dissolve. I stripped off and she looked at me properly for the first time and didn’t look away. I’m bigger than Sam. Significantly. The kind of size that requires a moment, and Lena gave herself that moment, her eyes dark and her lips parting, before she sank to her knees in front of me and took me in her mouth like she’d been thinking about it for years. Because she had. She told me so, her voice wrecked, looking up at me with her lips stretched around my cock. She told me she’d thought about me since university. Sam watched every second of it from the doorway and his expression wasn’t jealousy. It was pride.
What happened next was the best sex of my life. Full stop. Lena is the kind of woman who knows exactly what she wants and isn’t afraid to ask for it, who can direct a room with a look and make three grown men feel like the luckiest bastards in North London. She took all of me. She came hard, twice, the second time screaming into the duvet whilst I fucked her from behind and she rubbed her clit with both hands and told me not to stop. Sam stood in the doorway the entire time. He didn’t look away. He didn’t want to.
Afterward, he came into the room and held her, and she whispered something in his ear that made him close his eyes. Then she looked at me and said thank you in that calm, warm Lena way, and Dan the AI developer from Camden, the quiet one of the group, the one who always knew what people wanted before they asked, stood there in a crash room above Kentish Town Road at two in the morning feeling like he’d been let in on the most important secret in the world.
Their marriage didn’t break that night. It didn’t crack or fray or become something complicated. It expanded. I watched them together afterward, the way Sam touched her like she was his and he was proud of it, the way Lena leaned into him and chose him again after everything. What they have is real and specific and built for two, and what happened with the rest of us was an addition, not a replacement. Sam’s the stag. Lena’s the vixen. And I was lucky enough to be in the right room on the right night when they finally stopped pretending.
Beta Testing the Wife is Book 22 in Chris P. Rider’s Hotwife Tales series: a geeky, filthy, funny, and genuinely loving stag and vixen novella set in Kentish Town, North London. One married couple. One app. Three old friends who’ve wanted her for years. And a husband who loved his wife enough to build the permission system that made the whole night possible. Available now on Amazon Kindle, Kindle Unlimited, and paperback.
This 27k word novella is book 22 of my “Hotwife Tales” series of stand-alone explicit hotwife (stag & vixen) erotica, for 18+ adult readers only!
Published 27th June 2026 on Amazon paperback and eBook – free to read on Kindle Unlimited! UK AMAZON | USA AMAZON | CANADA AMAZON | AUSTRALIA AMAZON
Trigger Warnings
This book contains adult content intended for readers aged 18 and over. Please be aware of the following themes before purchasing:
- Consensual wife sharing between a married couple and trusted friends
- Stag and vixen dynamic with a voyeuristic husband
- Explicit sexual content including oral sex, vaginal sex, and anal sex
- Multiple male partners with one female participant
- Cock size comparison between husband and other male partners (positive framing, no humiliation)
- Strong language throughout
- Adult dare and social app used as a mechanism for sexual escalation
- Mild relationship conflict and a relationship ending (handled without cruelty)
All sexual activity in this book is between consenting adults aged 22 and over. No non-consensual scenarios are depicted.
