Rule 34 Dev - 2boys balls big_penis black_hair blushing blushing_male boner boxers clothed clothes clothing cock couple cute cute_expression cute_face cute_male dick duo erect_penis erection fangs gay gay_sex genital_fluids genitals glasses grey_body grey_skin handjob helping_hand homestuck horns horny horny_male interspecies jerking jerking_off jerking_off_another jerkingoff jerkingoff_another john_egbert karkat_vantas lacryboy light-skinned_male light_skin looking_at_penis looking_pleasured male male/male male_only masturbating masturbating_other masturbation medium_hair melanpsycholia monster monster_boy mostly_clothed nerd on_bed pants pants_open penis penis_out pleasure pleasure_face pleasured pleasured_face pointy_ears precum precum_drip shark_teeth teen teen_boy teenage teenage_boy teenager teenager_on_teenager testicles troll troll_male twink underwear white_skin yaoi|8649301688