3:4accessoryahegaoanalanal_penetrationanthroballsbearbicepsbig_musclesbig_penisblack_bearblushbodily_fluidsbreathbrother_(lore)brothers_(lore)brown_bodybrown_furbuttcensor_removal_editcumduoerectionexcessive_cumexcessive_genital_fluidseye_rollfurgenital_fluidsgenitalsgenyokuenbou_(pixiv)humanoid_genitaliahumanoid_penisincest_(lore)juuichi_mikazukikenji_mikazukilooking_pleasuredlyingmalemale/malemale_penetratedmale_penetratingmale_penetrating_malemammalmoon_bearmorenatsumuscularmuscular_malenecktienippleson_backpantingpecspenetrationpenissexsibling_(lore)slightly_chubbyspread_legsspreadingthick_penisthird-party_edittwins_(lore)unavailable_at_sourceursinevein