rule 34 4 fingers 5 fingers absurd res animal humanoid ass ass up avian avian humanoid balls beak biceps big butt bird black body black feathers bodily fluids butt grab cum cum in ass cum inside duo feathers fingers fist flushed fumikage tokoyami gay genital fluids genitals half closed eyes hand on butt hi res human humanoid koji koda koji kouda kouda kouji legs up male malemale male penetrating mammal monsterfurryr34 muscular muscular arms my hero academia narrowed eyes nude open mouth penetration penis precum shadow simple background spread legs spreading tokoyami fumikage 8105350