Rule 34 Dev - abs bara biceps big_ass big_butt blush bodybuilder boner bulge bulge_grab clothing comic erection fat_ass hairy_arms hairy_legs hairy_male hairy_penis huge_balls huge_bulge huge_cock huge_muscles huge_pecs hunk japanese_text kuromine_hiraya looking_at_penis male male_focus male_only masturbation moaning muscle muscles muscular muscular_ass muscular_back muscular_legs muscular_male muscular_thighs night nipples panting pecs precum precum_through_clothing pubic_hair public public_masturbation runner running see_through_clothing sex shorts solo solo_male sweat sweating tan_skin translated veins veiny_muscles veiny_penis wet_clothes working_out yuatari|5303820776