Rule 34 Dev - 1boy all_fours anthro anus armadillo ass ass_up backsack balls blush briefs buttjob circumcised clothing digimon duo erection faceless_male fuleco greyscale holding_ass hopelesshighschool humanoid_penis legs_up looking_at_viewer looking_back lying male male_only mammal mascot monochrome multiple_images nude nuzzling on_back opencanvas penis penis_on_face perineum presenting presenting_anus raised_tail sitting solo spread_legs spreading tail underwear|2074903040