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lust!sans

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<3_eyes 2018 3boys alternate_universe anal anal_sex animated_skeleton balls blush bodily_fluids bone bottomless bound clothed clothing digital_media_(artwork) english_text erection fallen9choirs fangs fellatio fingerless_gloves gloves glowing glowing_eyes grey_background group group_sex hands_tied handwear heart humanoid_penis incest lust!sans male male/male male_only male_penetrated male_penetrating moan one_eye_closed open_mouth oral papyrus papyrus_(underfell) papyrus_au penetration penile penis penis_grab purple_eyes purple_penis purple_tongue red_eyes sans sans_(underfell) sans_(underlust) sans_au sanscest sex simple_background skeleton speech_bubble tears teeth text threesome tongue trio undead underfell underfell_papyrus underfell_sans underlust underlust_sans undertale undertale_au undertale_fanfiction video_games yaoi
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1:1 1boy animated_skeleton bone cum cum_drip cum_dripping_from_penis humanoid humanoid_penis implied_oral implied_sex lizheru lizherubones lust!sans male male_only penis purple_penis purple_tongue sans skeleton solo tongue undead underlust underlust_sans undertale undertale_fanfiction video_games