My girlfriend’s college friend made me cum on her ass after the gym

One of my girlfriend’s college friends, Anna (not her real name), was visiting us for the holidays and staying in the spare room of our apartment. Anna is easily one of the most attractive women I know—fit, toned, and absolutely stunning. She’s the type who hits the gym daily and jogs most mornings. On top of that, she’s a fitness model with a decent Instagram following, and her posts always showcase her in tight, skimpy activewear. I’ll admit, I’ve jerked off to a few of her posts in the past.

It’s been nearly impossible to keep my eyes off her whenever she’s around, especially with my girlfriend nearby. She’s caught me staring a couple of times, but thankfully, she hasn’t said anything. To be fair, she doesn’t make it easy—Anna often lounges around the apartment in brightly colored activewear that hugs her curves perfectly.

One morning, when my girlfriend was at work, Anna invited me to join her for a workout. I tried to hide my excitement and agreed. The workout was intense—not because of the weights, but because I was struggling to keep myself from getting hard. She wore a sage-green set of tight shorts and a cropped sports bra, which looked amazing against her tanned skin.

At the gym, all the guys were sneaking glances as she asked me to spot her during squats. Being so close to her firm, round ass was too much to handle. At one point, she brushed against my erection as she squatted, and I quickly apologized, embarrassed. She just smiled and shrugged it off as if it were nothing.

When we got back to the apartment, I was so worked up that I excused myself to take a shower. My cock was throbbing, and I couldn’t wait to relieve the tension. Once in the bathroom, I opened Anna’s Instagram profile and started jerking off. I was barely a minute in when the door opened, and there she was.

Frozen in shock, I couldn’t say anything—there was no hiding what I was doing, with my cock in my hand and her photos on my phone. Anna didn’t speak either. She simply closed the door behind her, placed her hand on my chest, and gently pushed me against the wall.

I was naked, but she was still in her workout gear. Slowly, she turned around and pressed her firm ass against my erection. I thought I was going to explode right then and there. Then, she started grinding.

The sensation of her toned ass moving against my cock through the smooth fabric of her shorts was almost too much to handle. My breath was heavy as I fought to hold back. She was still hot and glistening from the gym, and the sight of her toned back under the light made my cock throb even harder.

Her eyes locked onto mine in the mirror, a devilish smile playing on her lips. It was clear she loved seeing me struggle to keep from cumming, knowing she had complete control. My hands gripped the towel rail tightly as my body finally gave in. With a low groan, I came hard, shooting ropes of cum onto her back and soaking her shorts.

Without a word, she removed her sports bra and slid off her cum-stained shorts. Handing them to me, she said, “These need a wash.” I barely caught a glimpse of her perky breasts and smooth pussy as she stepped into the shower.

I threw her clothes in the wash and waited until she finished before taking my own shower. We never spoke about what happened, and life went on as if nothing had changed.