FURVERT!

2023 abs anal anal_penetration anthro anus back_muscles ball_grab balls bed biceps butt canid canine canis deltoids domestic_dog duo eyes_closed feet fox furniture genitals head_back hi_res kneeling legs_up lying male male/male mammal maxima muscular muscular_male navel nipples on_back on_bed open_mouth pecs penetration penile penile_penetration penis penis_in_ass perineum sex simple_background spread_legs spreading triceps vein veiny_penis white_background