The bi-curious professor in the sauna Part 1 SeXStoRY

I am 20 years old and in college. One Friday night I am sitting alone in the gym’s sauna naked with a minor erection when an average looking guy, full head of dark hair, gray on the temple, medium amount of chest hair also partly gray, in his late 40’s comes in and sits down. (In one variation he is mostly bald, what hair remains it gray, and he is in his late 50’s) He has a towel wrapped around himself. I quickly cover myself. After a bit I get up and walk out to take a cool down shower. After a minute the guy also comes out of the sauna to cool down. He uses to the shower head next to mine. He takes off his towel and reveals that he was also naked. With a quick glance I could tell that he was uncut. My cock lengthens slightly at his naked proximity. The guy notices but does not seem to care. I ended my shower, covered up and returned to the sauna. The guy eventually comes back to the sauna with his towel lightly wrapped around his waist. He sits with both feet on the floor. His towel slips to the side and I can barely see his cock. After a few minutes he turns his body so that he is facing me. One leg flat on the bench and the other propped up. I can clearly see his cock and balls now. His cock is slightly enlarged. After a minute he slips his left down to his groin and scratches under his balls. His cock enlarges slightly. He leaves his hand there as if to cover himself. My cock enlarges slightly and twitches. The guy starts to slowly caress his cock and balls. I start to caress my cock and balls too. Both our cocks soon come to full erection. His cock looked to be 8 inches long and an inch and half thick. The guy slowly starts to masturbate. He nods toward me and I start to masturbate. This is the first time that I have seen another man masturbate in person. The guy liked to play with his balls while he masturbated. It looked enjoyable so I copy what he does. The heat from the sauna was making the two of us sweat. The guy was glistening from his sweat. After about 5 minutes I am the first to reach orgasm and I shoot my load into my masturbation hand. I continue to masturbate with my cum covering my hand and still hard cock. This really turns the other guy on and he quickly cums. Seeing his cum shoot out of his cock excites me and I cum again. As we leave the sauna the guy thanks me for the fun and takes off to the facility showers.