Rule 34 Dev - abs anthro athletic ball_lick balls biceps body_worship collaborative collaborative_fellatio collaborative_sex ears_down erection eyes_closed fellatio gangbang genitals group group_sex groupjob head_in_crotch humanoid_genitalia humanoid_penis licking looking_pleasured lying male male/male male_penetrated male_penetrating male_penetrating_male moan muscular muscular_male nude on_back open_mouth oral pecs penetration penile penis pivoted_ears quadruple_collaborative_fellatio reverse_gangbang sex spread_legs spreading tail tongue tongue_out vein worship k-9 duncan_(k-9) canid canine canis domestic_dog mammal 1:1|1327534810