Rule 34 Dev - 1boy 1male abs ball_hair balls bandage bara beating_off berserk big_penis black_hair blush boner bottomless bottomless_male burankoprn erect_nipples erect_penis erection eyelashes functionally_nude guts_(berserk) hairless_balls hard_on imminent_orgasm jacking_off jerking jerkingoff legs looking_pleasured male_focus male_masturbation male_only male_pubic_hair manly masturbating masturbation muscles muscular muscular_male nipples one_eye_closed one_handed_masturbation open_mouth partially_clothed pecs penile_masturbation penis pubic_hair red_eyes ripped_clothing robotic_arm scar shirt_lift short_hair sitting sitting_down smile solo solo_male spread_legs stiffy stroking stroking_cock stroking_penis sweat sweatdrop testicles thighs vein veins veiny_penis wanking|4245265720