1boy, bara, black_hair, black_leggings, black_tank_top, closed_mouth, covering_crotch, covering_privates, embarrassed, facial_hair, goatee, gym, indoors, large_pectorals, leggings, lying, male_focus, muscular, muscular_male, on_back, original, pectorals, short_hair, solo, tank_top, tarutoru