Rule 34 Dev - anal anal_penetration animal_genitalia animal_penis anthro balls black_body black_fur blush bottomless brown_body brown_fur brown_hair butt canine_genitalia canine_penis clothed clothing cowgirl_position duo erection exercise from_front_position fur genitals gym gym_clothing hair inside knot looking_back looking_pleasured male male/male mostly_nude motion_lines muscular muscular_anthro muscular_male nipples nude on_bottom on_top penetration penis riding sex shirt straddling tank_top tongue tongue_out topwear workout yellow_body yellow_fur bmrwcl canid canine canis dobermann domestic_dog felid lion mammal pantherine pinscher hi_res|100595968