In a sleek, sweat-slicked solo session, Keikun, the Japanese muscle hunk, pays extra attention to his nipples. He's a verified amateur, and his body is a temple of hard-earned muscle, each ripple and valley defined. He tugs and pinches his nips, sending jolts of pleasure to his engorged cock. With a groan, he begins to stroke, his massive hand barely fitting around his girth, while his other hand continues to lavish attention on his sensitive nipples.