FURVERT!

alternate_species artificial_intelligence black_hair blue_nipples blue_vulva breasts butt demon demon_humanoid duo erection eyes_closed facial_hair female female_penetrated genitals glados hair hand_behind_head heart_symbol human human_on_humanoid humanoid humanoidized interspecies machine male male/female male_penetrating male_penetrating_female mammal nipples not_furry open_mouth otaconxix penetration penile penile_penetration penis penis_in_vagina portal_(series)revenant robot robot_humanoid sex spread_legs spreading technophilia undead vaginal vaginal_penetration valve valve_corporation vulva wolf_(otaconxix)