Rule 34 Dev - 2018 abs anal anal_sex animal_genitalia animal_penis anthro anthro_on_anthro balls black_fur black_hair blue_eyes brown_fur canine canine_penis closed_eyes collie coyote detailed_background duo erection fangs forest fur grass grey_fur grey_hair hair knot looking_pleasured lying male male_penetrating mammal missionary_position multicolored_hair nude on_back open_mouth patrikthedog pecs penetration penis rough_collie sex sheath tan_fur teeth tongue tree white_fur white_hair yaoi zeekerz|3365106600