You have just arrived home after a trip to the gym with your girlfriend Claudia. She gets out of the shower wearing a towel and notices you staring. She giggles, telling you that she noticed how you couldn’t stop looking at her at the gym, and that she was deliberately teasing you. She offers to flex for you now, to make up for being such a tease. Showing off her thick shoulders and back, and big hard biceps she tells you to get your cock out and stroke it for her, then gets so turned on watching you that she climbs onto your cock and rides it until you cum, as she continues to flex her muscles for you.