The scent of soap and sweat fills the air as the tattooed marine, clad only in a tight, wet undershirt, begins to pleasure himself. His thick, veiny cock stands at attention, demanding his full focus. He runs his calloused hands along his length, twisting and pumping, his breath growing heavier with each stroke. The steam from the shower swirls around him, obscuring his reflection in the mirror, but not the intense pleasure etched on his face.