In the dimly lit, sterile gym, a muscular Adonis, inked with intricate tattoos, dons nothing but a jockstrap. He begins his workout, each lift emphasizing his bulging biceps and triceps. His cock, semi-erect and floppy, swings gently with each movement. He transitions to squats, his glutes clenching, and suddenly, the flaccid cock starts to grow, lengthening and hardening against his thigh. He pauses, looking down at his now-thick shaft, a smirk playing on his lips as he grabs it, giving it a few pumps before resuming his workout.