FURVERT!

1:1 absurd_res anthro anus balls big_balls bodily_fluids butt canid canine canis domestic_dog duo erection friztwolf furniture genitals hi_res holding_butt humanoid_genitalia humanoid_penis male male/male mammal mastiff molosser musk nude penis raised_tail rottweiler size_difference sofa sweat sweaty_balls sweaty_butt sweaty_genitalia sweaty_penis tail tail_anus wolf