Xbooru - 2010s 2019 2boys ambiguous penetration animated skeleton arm around another's neck arm around neck arm support artist name beetleevil blue blush blush bottom sans brother brother/brother brother and brother brothers clothed clothing duo english text evilbeetle fontcest grabbing sheets gripping sheets implied penetration implied sex incest jacket legs around partner legs around waist line art lineart male/male male only monster no visible genitalia orange blush pants around one leg papyrus papyrus (undertale) papysans partially colored penetration sans sans (undertale) scarf seme papyrus sex skeleton socks text top papyrus uke sans undead undertale undertale (series) white background yaoi