Rule 34 Dev - bed blue_eyes blue_sans_penis blue_sans_tongue blush bone comic dialogue heart imminent_incest imminent_rape imminent_sex incest kissing lizheru_(artist) lying male meta_request papyrus_au penis sans sans_au sans_blush sans_eye sans_glowing_eye sans_penis sans_tongue sitting skeleton sweat tears text tongue underswap undertale_au video_games yaoi|2252823040