Rule 34 Dev - after_kiss alphys bird's-eye_view biting_lip black_and_white blush bottomless bra breasts buckteeth chubby closed_eyes clothed clothing cunnilingus cupping_chin duo ear_fins ear_frills eye_scar eyewear female fin fish frill gills glasses grabbing_sheets hair_tie hi_res high-angle_view humanoid legwear line_art lingerie lizard lying marine monochrome multiple_positions navel on_back oral pixylbyte ponytail reclining reptile ribbons saliva saliva_string scalie scar sequence sex side_view slightly_chubby stockings tail_bow tail_ribbon teeth undertale underwear undyne vaginal_penetration video_games yuri|3565204328