In the dimly lit room, Martin, a man of quiet intensity, strips down to his boxers. His gaze falls on his throbbing erection, a sight that sparks a hunger within him. He strokes his cock, feeling the velvety skin against his fingertips. The room fills with the sound of his ragged breaths as he picks up the pace, his body tensing with each thrust into his fist. His free hand reaches down, cupping his heavy balls, rolling them gently. The pleasure builds, his cock leaking pre-cum, until he can't hold back any longer. With a low groan, he comes undone, his hot seed spilling over his hand.