Xbooru - 1boy 2010s 2015 animated skeleton artist request blue penis bottom sans bottomless clothed clothing ectopenis jacket jacket only male male focus male only malesub monster off shoulder orange tentacles partially clothed partially nude penis sans sans (undertale) see-through penis simple background skeleton smooth penis solo focus submissive submissive male tentacle tentacle around penis tentacles around legs topless uke sans undead undertale undertale (series) white background