FURVERT!

2006 4_toes against_surface against_wall anthro barefoot bed bedroom biped black_body black_fur bodily_fluids border_collie bottomwear bottomwear_down boxers_(clothing)brown_body brown_fur butt canid canine canis claws clothed clothing collar collie cum digitigrade dipstick_tail domestic_dog erection feet fur furniture genital_fluids genitals herding_dog hindpaw holding_own_penis holding_penis humanoid_genitalia humanoid_penis inside kneeling male mammal markings masturbation multicolored_tail on_bed pants pants_down partially_clothed pastoral_dog paws penile penile_masturbation penis pillow precum raised_tail sheepdog shorts solo ssirrus tail tail_markings toes topless underwear white_body white_fur