Xbooru - 2020s 2022 2d 2d (artwork) anal animated skeleton bigger dom bigger dom smaller sub bigger male bigger penetrating bigger penetrating smaller black censor bar blue blush blue hoodie blue jacket blush bottom sans bottomless brother brother penetrating brother brothers censor bar clothed digital media (artwork) drooling duo ectopenis ectoplasm fluids fontcest genital fluids genitals hooded jacket hoodie incest intraspecies jacket japanese text larger male larger penetrating larger penetrating smaller logo (pixiv id 30462562) male mastery position monster monster boy orange blush orange penis papyrus papyrus (undertale) papysans penetration pixiv sans sans (undertale) seme papyrus sex sibling incest siblings sitting sitting on lap sitting on penis sitting position skeleton small sub small sub big dom smaller penetrated smaller sub smaller sub bigger dom solo focus submissive sweat text text bubble top papyrus uke sans undead undertale undertale (series) video game character video games yaoi | 1015412

2020s 2022 2d 2d_(artwork) anal animated_skeleton bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller black_censor_bar blue_blush blue_hoodie blue_jacket blush bottom_sans bottomless brother brother_penetrating_brother brothers censor_bar clothed digital_media_(artwork) drooling duo ectopenis ectoplasm fluids fontcest genital_fluids genitals hooded_jacket hoodie incest intraspecies jacket japanese_text larger_male larger_penetrating larger_penetrating_smaller logo_(pixiv_id_30462562) male mastery_position monster monster_boy orange_blush orange_penis papyrus papyrus_(undertale) papysans penetration pixiv sans sans_(undertale) seme_papyrus sex sibling_incest siblings sitting sitting_on_lap sitting_on_penis sitting_position skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom solo_focus submissive sweat text text_bubble top_papyrus uke_sans undead undertale undertale_(series) video_game_character video_games yaoi

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