Folow him and go to the locker room

From Create Your Own Story

You hit the cooldown button on your exercise bike, winding down your workout as you watch the chubby Black man head toward the locker room. Your eyes linger on his large, fat, round ass and thick thighs swaying with each step. You wait a moment, then stop the machine and step off, your legs trembling slightly from the effort. Deliberately taking your time, you grab your water bottle and wipe down the equipment before strolling slowly to the locker room yourself. If you time it just right, you think, he'll be mostly undressed—or better yet, naked—by the time you arrive.

So you deliberately go slowly.

You enter the locker room, and damn, you've nailed the timing. There he is, wearing only a pair of white briefs that sit low on his hips, his chubby belly spilling slightly over the waistband, along with his broad chest, muscular shoulders, and powerful thighs. That bulge in his underwear is impossible to ignore—thick and promising. You head to your locker, conveniently close to his, unlock it, and pull out your belongings, setting them on the bench. Out of the corner of your eye, you catch him hooking his thumbs into the waistband of his briefs and sliding them down his legs. Before you can turn your head, he snatches his towel and holds it in front of him, covering his cock as he walks right past you toward the showers. The rest of his naked body is on full display—plump, beefy ass cheeks jiggling with each step. Your jaw nearly hits the floor. A big, powerful man like him could show you a real good time, you muse, and from the size of that bulge, his cock must be huge. Do you...

Undress and hit the showers too

Or

put your things back and head out to the gym for another workout