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alphys animal_humanoid anthro aquatic aquatic_humanoid bare_shoulders bed bedding blanket blue_body blue_skin blush book detailed_background duo ear_fins ear_frill eyelashes eyes_closed eyeshadow eyewear female female/female fin fish fish_humanoid frill_(anatomy)furniture glasses hair humanoid inside light lighting long_hair looking_at_another looking_at_partner lying makeup muscular muscular_female night noseless on_bed on_front on_side one_eye_closed pillow red_eyes red_eyeshadow red_hair reptile romantic romantic_ambiance romantic_couple scalie scar sharp_teeth sky sleeping star starry_sky teeth under_covers undertale undertale_(series)undyne whan window yellow_body yellow_sclera yellow_skin yellow_teeth