3:4accessoryanalanal_penetrationanthroballsbearbicepsbig_musclesbig_penisblack_bearblushbreathbrother_(lore)brothers_(lore)brown_bodybrown_furbuttcensor_removal_editduoerectionfurgenitalsgenyokuenbou_(pixiv)humanoid_genitaliahumanoid_penisincest_(lore)juuichi_mikazukikenji_mikazukilyingmalemale/malemale_penetratedmale_penetratingmale_penetrating_malemammalmoon_bearmorenatsumuscularmuscular_malenecktienippleson_backpantingpecspenetrationpenissexsibling_(lore)slightly_chubbyspread_legsspreadingthick_penisthird-party_edittwins_(lore)ursinevein