Rule 34 Dev - 1anthro 1boy 1male ai_generated balls ballsack boner canine canine_genitalia canine_penis cock cub dick dog_penis erect_penis erection furry furry_male furry_only gleipnir gray_body gray_fur grey_body grey_fur knot male male_only multicolored nuts nutsack paws penis red_eyes scrotum shuichi_kagaya stitches testicles|13121027320