FURVERT!

1:1 anthro anus anus_focus ball_tuft balls bent_legs big_anus big_butt bodily_fluids butt butt_focus canid canine canis domestic_dog feet fluffy fur genitals grey_body grey_fur hi_res legs_up lying male mammal nervous on_back perineum presenting presenting_anus presenting_hindquarters sleepingpowder solo spread_legs spreading sweat tail tuft