This story takes place in my junior year of college. By this time, Chloe and I were well beyond the point of “testing the waters” in terms of the non-monogamous aspects of our relationship. Most of the rules we set initially had been broken, and those that remained served more as guidelines than actual boundaries. This made it more difficult for me to cope with the emotional impact of watching my girlfriend spread her legs for other men time and time again, but it made it all the more erotic as well. It also opened the door to some new possibilities, which made our relationship even more exciting.
Anyway, the event that catalyzed this story was one of Chloe’s sorority functions. Every few years, the sorority held a formal dance, with all the girls in their nicest dresses and the guys in three-piece suits. Chloe was generally more than happy to have any excuse to get dolled up, so she went all out for the event. She had me pay for her to get her nails done, and I ended up ordering her a new pair of heels to wear as well. The dress she chose was the same dress she wore to her senior prom, the very same prom I had taken her to over three years prior. Of course, she fit into it easily, still as petite at 21 as she had been at 18, and she looked absolutely stunning.
The dance itself was relatively uneventful. We sipped drinks and talked, and I had to constantly stop myself from thinking about the fact that every girl at this party knew my secret. Thanks to Chloe’s loose lips and proclivity for talking about sex when drunk, almost all of her sorority sisters knew I let her fuck other guys on the side, and several of them had seen her do it for themselves.
I also noticed that Chloe was spending an unusual amount of time on her phone during the event. Eventually I got her alone and she revealed that she was Snapchatting Eric, a coworker she had been seeing on the side. She had apparently been sending him pictures of her in her prom dress, and he had been liking what he was seeing. “I would do bad things to you in that dress” were his exact words, I believe. I couldn’t tell if he was seducing her or she him, but either way it wasn’t long before she said she was ready to leave.
Once we got in the car, Chloe revealed that Eric had invited her over in what was a completely blatant booty call. As strange as it seems now, at the time this was the first time Eric had straight up propositioned Chloe. Before now, there had always been some excuse for her to go over — laundry, working extra on something — this was the first time that the one and only reason she would be going over would be to fuck.
We drove for about 10 minutes before Chloe made up her mind.
“Take me to Eric’s” she said.
She directed me to Eric’s place, which was only about 10 minutes from our apartment. As we pulled into the driveway, she leaned over and kissed me, brushing her manicured hand over the outline of my cock through my suit pants.
“Thanks for being such a good boyfriend” Chloe whispered seductively.
“Thank me by being a good slut and then sending me pictures” I answered.
She giggled and kissed me a final time before getting out of the car. I watched her strut up to Eric’s front door in the prom dress, her new heels clicking on the sidewalk. The door opened for her as she approached, and she gave me the cutest wave I’ve ever seen before disappearing inside.
I collected myself and made the short drive back to our apartment to wait for pictures. The first one arrived before I was even in the door. The shot was from Chloe’s POV, and showed her lying on her back on Eric’s bed, her long legs crossed at the ankles. Her pedicured toes peeked out of her heels, and the caption read “he’s having me keep the dress and heels on :)”.
Sure enough, the next several pictures and videos showed that Eric wasted no time in fucking my girlfriend. Chloe welcomed Eric’s dick eagerly, and I noticed from the images that she had shaved her pussy clean. I wonder now if she had done that for me originally, or if it had always been her plan to fuck Eric (or someone else) in that dress.
Eventually they must have tired of the dress, and one of the pictures showed Chloe standing in front of Eric in the mirror, her 4″ heels still leaving her an inch shorter than Eric. The dress was on the floor around her ankles, and the hand she wasn’t using to hold the phone was wrapped around Eric’s shaft. Eric’s hands cupped Chloe’s tits from behind, her nipples hard between his fingers.
They remained in front of the mirror as Chloe got on her knees and began servicing Eric’s cock with her mouth, yet another reminder of how much more of a slut she was for him than she ever had been for me. Chloe seldom blew me, and if she did, she would never get on her knees to do so, much less after my dick had been insider her. But she sucked Eric’s cock with enthusiasm, and I could tell from watching the video he took that the practice had been helping her. Where once she could barely fit half his cock in her mouth without gagging, Chloe was now taking his full length down her throat with ease, her hand working his shaft as she did. I’ll never forget the way her red lipstick left rings around Eric’s shaft as she treated him to the pleasure she so casually withheld from me.
It was at this point that the texted pictures and videos started to slow down, and I knew that could only mean that the sex was speeding up. No longer concerned with showing off to me, Chloe and Eric fucked for another hour before she finally texted me to come pick her up. Accompanying the last text was one of my favorite pictures of the night: a simple mirror selfie from Eric’s bathroom, where she almost looked like a completely different person. Her once-elegant hair was now a complete mess, and her makeup was similarly ruined. The dress I had found so beautiful was now wrinkled and had a tear in the hip, no doubt made as Chloe spread her legs beyond the dress’s limits. I think the reason I like this picture the most is because it showed my girlfriend for who she truly was: a willing and committed slut.
Anyway, that’s generally the end of the story. I picked Chloe up from Eric’s that night and brought her back to our place for a shower. Chloe remained naked afterwards, and for a minute I thought she was going to let me reclaim her. Instead, she ended up just making me kiss her feet and stroke myself as she recounted every detail of her night to me, the same details I used to help me write this story. After I came, she teased me about how maybe I would get more blowjobs from her if I didn’t spend so much time worshiping her feet, but then again why bother when she could just go to Eric’s if she felt like sucking cock.
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Source: reddit.com/r/eroticliterature/comments/n92iud/my_girlfriend_wore_her_prom_dress_to_cheat_on_me