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underfell papyrus

2018 2boys 2d artist_request black_sclera blowjob comic english_text fellatio first_person_view humanoid incest ksuriuri male male_only male_pov oral papyrus penis pov red_eyes red_penis sex sweating tagme tagme_(artist) talking text text_bubble underfell underfell_papyrus underfell_sans undertale_(series) undertale_fanfiction yaoi
2018 2boys 2d artist_request black_sclera blowjob comic english_text fellatio first_person_view humanoid incest ksuriuri male male_only male_pov oral papyrus penis pov red_eyes red_penis sex sweating tagme tagme_(artist) talking text text_bubble underfell underfell_papyrus underfell_sans undertale_(series) undertale_fanfiction yaoi
2d artist_request blowjob blue_tongue double_blowjob double_fellatio ectopenis fellatio humanoid incest male male_only papyrus_au red_penis red_tongue sans sans_au sleeping spanish_text tagme text trio_focus underfell underfell_papyrus underfell_sans underswap underswap_papyrus underswap_sans undertale_(series) undertale_au undertale_fanfiction
2d artist_request blowjob blue_tongue double_blowjob double_fellatio ectopenis fellatio humanoid incest male male_only papyrus_au red_penis red_tongue sans sans_au sleeping spanish_text tagme text trio_focus underfell underfell_papyrus underfell_sans underswap underswap_papyrus underswap_sans undertale_(series) undertale_au undertale_fanfiction
2boys artist_request ball_gag brothers ectopenis gay incest male male/male male_only papyrus_au recording red_eyes red_penis sans sans_au tagme underfell underfell_papyrus underfell_sans undertale undertale_au undertale_fanfiction unseen_male_face yaoi
2boys artist_request ball_gag brothers ectopenis gay incest male male/male male_only papyrus_au recording red_eyes red_penis sans sans_au tagme underfell underfell_papyrus underfell_sans undertale undertale_au undertale_fanfiction unseen_male_face yaoi
2boys 2d artist_request clothed ectopenis frottage gay grabbing_penis heart humanoid kissing male male/male male_only orange_penis papcest papycest papyrus papyrus_au pee penis red_penis selfcest sex tagme tagme_(artist) underfell underfell_papyrus underswap underswap_papyrus undertale_(series) undertale_au undertale_fanfiction white_background yaoi
2boys 2d artist_request clothed ectopenis frottage gay grabbing_penis heart humanoid kissing male male/male male_only orange_penis papcest papycest papyrus papyrus_au pee penis red_penis selfcest sex tagme tagme_(artist) underfell underfell_papyrus underswap underswap_papyrus undertale_(series) undertale_au undertale_fanfiction white_background yaoi
2boys 2d artist_request brothers gay humanoid incest male male_only sex tagme tagme_(artist) underfell underfell_papyrus underfell_sans undertale_(series) undertale_fanfiction yaoi
2boys 2d artist_request brothers gay humanoid incest male male_only sex tagme tagme_(artist) underfell underfell_papyrus underfell_sans undertale_(series) undertale_fanfiction yaoi
2016 2boys blush bone brothers comic duo_focus english_text frottage gay incest male male_only masturbation monster papyrus penis penis_rubbing rubbing sans sex sibling skeleton text underfell underfell_papyrus underfell_sans undertale undertale_fanfiction undertale_papyrus undertale_sans unseen_character yaoi
2016 2boys blush bone brothers comic duo_focus english_text frottage gay incest male male_only masturbation monster papyrus penis penis_rubbing rubbing sans sex sibling skeleton text underfell underfell_papyrus underfell_sans undertale undertale_fanfiction undertale_papyrus undertale_sans unseen_character yaoi
against_door blush brothers comic english_text incest male monster papyrus_au penetration sans sans_au sex sibling skeleton text tongue_out underfell underfell_papyrus underfell_sans undertale undertale_fanfiction undertale_sans unseen_male_face yaoi
against_door blush brothers comic english_text incest male monster papyrus_au penetration sans sans_au sex sibling skeleton text tongue_out underfell underfell_papyrus underfell_sans undertale undertale_fanfiction undertale_sans unseen_male_face yaoi
anal anal_sex android animated_skeleton blush bone clothed clothing duo hair heart hotlegmeme humanoid machine male mettaton mettaton_ex monster multi_arm multi_eye multi_limb open_mouth pappyrus papyrus penetration penis robot sex simple_background skeleton teeth undead underfell underfell_metaton underfell_papyrus undertale undertale_fanfiction video_games white_background yaoi
anal anal_sex android animated_skeleton blush bone clothed clothing duo hair heart hotlegmeme humanoid machine male mettaton mettaton_ex monster multi_arm multi_eye multi_limb open_mouth pappyrus papyrus penetration penis robot sex simple_background skeleton teeth undead underfell underfell_metaton underfell_papyrus undertale undertale_fanfiction video_games white_background yaoi