fan character and riley the rottweiler created by 4chan anon

4chan_anon anthro big_penis canid canine canis dark_body dark_fur domestic_dog eyes_closed fan_character fellatio fur genitals human male male/male mammal mastiff masturbation molosser muscular muscular_male oral penile penis riley_the_rottweiler rottweiler sex shower shower_sex size_difference solo standing standing_oral standing_sex stroking_penis thrusting_into_mouth wet wet_body