Rule 34 Dev - 2020 abs anthro arm_hair armpit_hair ball_tuft balls biceps body_hair brown_hair chest_hair deltoids erection forearm_hair forearms genitals grin grinning_at_viewer hair hand_behind_head hand_on_penis hi_res horn joojoo leg_hair looking_at_viewer male mammal marlon_forte muscular muscular_legs navel nipples nude pecs penis pubes rhinoceros simple_background sitting smile smiling_at_viewer smirk smirking_at_viewer solo spread_legs spreading triceps tuft white_background|13054652040