The bathroom is his private sanctuary, the only place he can indulge in his guilty pleasure. His big, veiny cock stands at attention, leaking copious amounts of pre-cum, a testament to his horny state. He strokes it roughly, his hand a tight fist around his shaft, his palm slick with his own fluids. His other hand reaches down, cupping his heavy balls, rolling them gently, sending jolts of pleasure up his spine. His strokes become faster, his breathing ragged, his body tensing as he nears the edge. With a final, powerful stroke, he groans, his cock pulsing as it releases a torrent of cum, coating the mirror and the counter, a mess he'll leave for someone else to clean up, a secret only he and the bathroom walls know.