after_sex anthro anus ass backsack balls barefoot big_dom_small_sub blush canine cleveland_brown cum cum_drip cum_from_ass dripping duo erection eroborus family_guy fox front_view humanoid_penis inviting kitsune_(ero) leaking looking_back male mammal moobs naughty_face nipples on_lap on_top on_top_of open_mouth overweight overweight_male penis perineum pull_out raised_tail rear_view reclining sitting size_difference spread_legs spreading unknown_species vein veiny_penis yaoi