Rule 34 Dev - animal_genitalia animal_penis anthro balls big_balls canid canine canine_penis erection fur genital_piercing genitals hair hands_behind_head heterochromia hi_res kiliankuro knot looking_at_viewer lying male mammal multicolored_hair nipple_piercing nipples nude on_back penis penis_piercing piercing purple_body purple_fur smile solo two_tone_hair watermark|4917895616