Search

(Supports wildcard *)
Tags

2016 animated_skeleton blue_blush blue_hoodie blue_jacket blush bottom_sans bottomless fire_elemental grillby grillby_(undertale) grillsans hooded_jacket hoodie implied_penetration implied_sex jacket male monster myspiderdance orange_body sans sans_(undertale) seme_grillby sitting skeleton top_grillby uke_sans undead undertale undertale_(series) animated_skeleton back_view blue_hoodie blue_jacket clothed fire_elemental grillby grillby_(undertale) grillsans hooded_jacket hoodie implied_oral jacket monster off_shoulder off_shoulders sans sans_(undertale) skeleton undead undertale undertale_(series) white_background yooutnsfw ... 2019 2boys 2d 2d_(artwork) animated_skeleton barefoot bra clothed clothes comic comic_sans digital_media_(artwork) duo english_text fire_elemental flirt flirting glasses grillby grillby_(undertale) grillsans lingerie male male_only melle-d mellednsfw monster panties sans sans_(undertale) sansby seducing seductive skeleton speech_bubble spoken_ellipsis text text_bubble undead undertale undertale_(series) underwear unusual_clothing video_game_character video_games 2010s 2018 anal animated_skeleton big_penis bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller bottom_sans bottomless crying duo english_text fire_elemental glasses grillby grillby_(undertale) grillsans hot larger_male larger_penetrating larger_penetrating_smaller male naked_male nude nude_male penetration penis rectangular_eyewear rectangular_glasses sans sans_(undertale) seme_grillby sex skeleton sleeveless sleeveless_shirt small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom tank_top tanktop tears text top_grillby tryingtohidefromsans uke_sans undead undertale undertale_(series) animated_skeleton blue_penis bodily_fluids bottom_sans debt debt_repaid ectopenis fellatio fellatio_under_table gay grillby grillby_(undertale) grillsans heart heart-shaped_pupils heart_eyes kneel male male/male male_only mellednsfw nude penis rope sans sans_(undertale) seme_grillby skeleton solo_focus stealth_sex tied_up top_grillby uke_sans undead under_table under_the_table undertale undertale_(series) unseen_male_face yaoi 2010s 2016 animated_skeleton bigger_male clothed drunk duo english_text fire_elemental fully_clothed glasses grillby grillby_(undertale) grillsans hands_on_chest hands_on_chests hooded_jacket hoodie larger_male nervous off_shoulder off_shoulders sans sans_(undertale) sansby skeleton smoochthemskeles sweat text undead undertale undertale_(series) animated_skeleton bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_hoodie blue_jacket blush bottom_sans clothed ectoplasm fire_elemental glasses glowing grillby grillby_(undertale) grillsans hooded_jacket hoodie jacket larger_male larger_penetrating larger_penetrating_smaller male male_penetrating orange_body rectangular_eyewear rectangular_glasses sans sans_(undertale) seme_grillby simple_background size_difference skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom sweat top_grillby uke_sans undead undertale undertale_(series) withtheworms_(artist) 2010s 2016 against_wall animated_skeleton bigger_dom bigger_dom_smaller_sub bigger_male blue_blush blush bottom_sans clothed drooling duo fire_elemental fully_clothed grillby grillby_(undertale) grillsans hooded_jacket hoodie implied_penetration implied_sex jacket larger_male male pinned_to_wall sans sans_(undertale) seme_grillby skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom smoochthemskeles sweat top_grillby uke_sans undead undertale undertale_(series) unseen_male_face 2010s 2016 animated_skeleton biting_clothes biting_shirt blue_blush blush bottom_sans duo fire_elemental glass grillby grillby_(undertale) grillsans groping male rectangular_eyewear rectangular_glasses sans sans_(undertale) sansby shirt_up skeleton soul soul_sex uke_sans undead undertale undertale_(series) unknown_artist anal animated_skeleton artist_request blush bottom_sans closed_eyes fire_elemental glasses glasses_only grillby grillby_(undertale) grillsans hugged_from_behind hugging hugging_from_behind male nude orange_body orange_penis penetration penetration_from_behind penis sans sans_(undertale) seme_grillby sex sex_from_behind sitting sitting_position skeleton top_grillby uke_sans undead undertale undertale_(series) white_background 2016 animated_skeleton bigger_dom bigger_dom_smaller_sub bigger_male bottom_sans clothed glasses grabbing_own_penis grabbing_penis grillby grillby_(undertale) grillsans imminent_sex larger_male male monochrome on_floor penis rectangular_eyewear rectangular_glasses sans sans_(undertale) seme_grillby shirt_up skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom spilled_drink top_grillby uke_sans undead undertale undertale_(series) 2010s 2017 2boys 2d 2d_(artwork) animated_skeleton announcing_orgasm artist_request bottom_sans digital_media_(artwork) duo english_text fire_elemental grillby grillby_(undertale) grillsans imminent_cum imminent_ejaculation imminent_orgasm male male_penetrating nude nude_male orange_body penetration pov receiving_pov sans sans_(undertale) seme_grillby sex skeleton solo_focus submissive_pov taker_pov text text_bubble top_grillby uke_sans undertale undertale_(series) video_games yaoi 2010s 2017 2boys anal animated_skeleton bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_hoodie blue_jacket blue_tongue blush bottom_sans bottomless crying crying_with_eyes_open duo ectoplasm fire_elemental gigandam glasses grillby grillby_(undertale) grillsans hooded_jacket hoodie larger_male larger_penetrating larger_penetrating_smaller male male/male male_only one_eye_closed orange_body pants penetration pixiv_id_780096 rectangular_eyewear rectangular_glasses sans sans_(undertale) seme_grillby sex shirt_up sitting size_difference skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom sweat tears tongue tongue_out top_grillby topless topless_male uke_sans undead undertale undertale_(series) video_games 2010s 2018 2boys 2males animated_skeleton bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_eyes blue_tongue blush bottom_sans dark_background duo duplicate fire_elemental gay grillby grillby_(undertale) grillsans heart-shaped_pupils heart_eyes hugging indoors larger_male larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrating mellednsfw muscular muscular_male nude nude_male orange_body penetration sans sans_(undertale) seme_grillby sex sitting sitting_on_lap sitting_position skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom sweat tongue tongue_out top_grillby uke_sans undead undertale undertale_(series) yaoi 2010s 2018 2boys 2males animated_skeleton bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_blush blue_eyes blue_tongue blush bottom_sans dark_background duo duplicate fire_elemental from_front_position gay grillby grillby_(undertale) grillsans heart-shaped_pupils heart_eyes indoors larger_male larger_penetrating larger_penetrating_smaller legs_over_partner's_shoulders legs_over_shoulders legs_up male male/male male_only male_penetrating mellednsfw missionary_position muscular muscular_male nude nude_male orange_body penetration sans sans_(undertale) seme_grillby sex skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom sweat tongue tongue_out top_grillby uke_sans undead undertale undertale_(series) yaoi 2boys animated_skeleton ass bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_ass blue_blush blue_body blue_butt blue_penis blue_tongue blush bottom_sans butt drooling duplicate ectobody ectobutt ectopenis fire_elemental from_behind glasses grabbing_from_behind grabbing_pillow grillby grillby_(undertale) grillsans handjob handjob_while_penetrating heart-shaped_pupils heart_eyes hugging_pillow indoors larger_male larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrated male_penetrating_male mellednsfw muscular muscular_male nude nude_male orange_body penetration pillows rectangular_eyewear rectangular_glasses saliva_on_tongue sans sans_(undertale) seme_grillby sex sex_from_behind skeleton small_sub small_sub_big_dom smaller_male smaller_penetrated smaller_sub smaller_sub_bigger_dom tongue tongue_out top_grillby uke_sans undead undertale undertale_(series) yaoi 2boys animated_skeleton ass bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller blue_ass blue_blush blue_body blue_butt blue_penis blue_tongue blush bottom_sans butt drooling ectobody ectobutt ectopenis fire_elemental from_behind glasses grabbing_from_behind grabbing_pillow grillby grillby_(undertale) grillsans handjob handjob_while_penetrating heart-shaped_pupils heart_eyes hugging_pillow indoors larger_male larger_penetrating larger_penetrating_smaller male male/male male_only male_penetrated male_penetrating_male mellednsfw muscular muscular_male nude nude_male orange_body penetration pillows rectangular_eyewear rectangular_glasses saliva_on_tongue sans sans_(undertale) seme_grillby sex sex_from_behind skeleton small_sub small_sub_big_dom smaller_male smaller_penetrated smaller_sub smaller_sub_bigger_dom tongue tongue_out top_grillby uke_sans undead undertale undertale_(series) yaoi 2010s 2018 2boys 2d 2d_(artwork) animated_skeleton artist_name blue_blush blush bottom_sans clothed digital_media_(artwork) duo echoheartx elegantfolly fire fire_elemental grillby grillby_(undertale) grillsans imminent_sex kneel male male/male male_only partially_clothed sans sans_(undertale) skeleton topless topless_male uke_sans undead undertale undertale_(series) undertale_fanfiction video_game_character video_games yaoi animated_skeleton arinsfw big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_penetrating bigger_penetrating_smaller bottom_sans bottomless crying crying_with_eyes_open drooling english_text fire_elemental grillby grillby_(undertale) grillsans larger_penetrating larger_penetrating_smaller male penetration pleading sans sans_(undertale) seme_grillby sex skeleton small_dom small_dom_big_sub small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom sweat tears text top_grillby topless_male uke_sans undead undertale undertale_(series) unseen_male_face animated_skeleton arinsfw big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bottom_sans crying crying_with_eyes_open drooling english_text fire_elemental grillby grillby_(undertale) grillsans licking male sans sans_(undertale) seme_grillby skeleton small_dom small_dom_big_sub smaller_sub smaller_sub_bigger_dom text top_grillby uke_sans undead undertale undertale_(series) 2boys 2d 2d_(artwork) animated_skeleton bottom_sans bottomless bottomless_male digital_media_(artwork) duo fire_elemental from_front_position grillby grillby_(undertale) grillsans hoodie jacket ladybumtickler male male_only naked nude nude_male on_bed penetration sans sans_(undertale) seme_grillby sex sex_on_bed skeleton sniggysmut third-party_source top_grillby topwear tumblr_username uke_sans undead undertale undertale_(series) video_game_character video_games white_background yaoi animated_skeleton big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_penetrating bigger_penetrating_smaller bottom_sans clothed eli-sin-g fire_elemental gif glasses grillby grillby_(undertale) grillsans kolesjoie larger_penetrating larger_penetrating_smaller male missionary_position nude penetration rectangular_glasses sans sans_(undertale) seme_grillby sex skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom tears thrusting top_grillby uke_sans undead undertale undertale_(series) 2010 2019 2boys animated_skeleton blush blush_lines bottom_sans bottomless clothed clothed_male duo ectoplasm fingering fingering_another fingering_partner fire_elemental ganzooky glasses grillby grillby_(undertale) grillsans hand_on_another's_shoulder handjob kneeling line_art lineart looking_away male male_only monochrome mutual_masturbation nsfwsinningsans partially_clothed penis sans sans_(undertale) seme_grillby skeleton standing tongue_out top_grillby uke_sans undead undertale undertale_(series) 2010s 2018 animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_penetrating bigger_penetrating_smaller bottle bottom_sans cocktail_glass duo fire_elemental grillby grillby_(undertale) grillsans larger_penetrating larger_penetrating_smaller male naked nude on_table penetration pf-pro-fucker pf_pro_fucker sans sans_(undertale) seme_grillby skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom solo_focus top_grillby uke_sans undead undertale undertale_(series) unseen_male_face 2010s 2018 animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bottom_sans clothed/nude duo fire_elemental glasses grillby grillby_(undertale) grillsans licking pf-pro-fucker pf_pro_fucker sans sans_(undertale) skeleton small_sub small_sub_big_dom smaller_sub smaller_sub_bigger_dom uke_sans undead undertale undertale_(series) white_background 2010s 2018 animated_skeleton bigger_male cuddling duo fire_elemental glasses grillby grillby_(undertale) grillsans hugging larger_male male male_only no_sex nsfwgarbagedump sans sans_(undertale) sansby skeleton sketch sleeping square_glasses topless topless_male undead undertale undertale_(series) white_background wholesome yaoi 2020 2020s animated_skeleton artist_logo black_and_white breasts bunny_ears bunny_headband bunny_tail bunnysuit cleavage curvy_body curvy_figure duo ectobody face_grab female_sans fire_elemental glasses grillby grillby_(undertale) grillsans line_art lineart nsfwgarbagedump rabbit_ears rabbit_tail rectangular_glasses rule_63 sans sans_(undertale) sansby seducing seductive skeleton square_glasses undead undertale undertale_(series) white_background 2boys 2males anal animated_skeleton bigger_male bigger_penetrating bigger_penetrating_smaller blue_body blue_penis blue_tongue bottom_sans carrying chubby chubby_male completely_nude_male cropped cropped_image duo ectobody fire_elemental from_behind gay grillby grillby_(undertale) grillsans larger_male larger_penetrating larger_penetrating_smaller legs_lift male male/male male_only male_penetrated male_penetrating male_penetrating_male orange_body orange_penis partially_clothed_male reverse_suspended_congress sans sans_(undertale) seme_grillby shirt_up skeleton smaller_male smaller_penetrated socks text tongue tongue_out top_grillby uke_sans undead undertale undertale_(series) yaoi yore-donatsu alternate_universe animated_skeleton big_dom big_dom_small_sub bigger_dom bigger_dom_smaller_sub bigger_male bigger_penetrating bigger_penetrating_smaller bottom_sans completely_nude_male double_penetration fire_elemental grillby grillby_(underfell) grillby_(undertale) grillby_au grillsans larger_male larger_penetrating larger_penetrating_smaller male male/male male/male/male male_only male_penetrated male_penetrating male_penetrating_male monster myspiderdance naked orange_body purple_body sans sans_(undertale) seme_grillby size_difference skeleton small_sub small_sub_big_dom smaller_penetrated smaller_sub smaller_sub_bigger_dom tongue tongue_out top_grillby uke_sans undead underfell undertale undertale_au video_games yaoi animated_skeleton bottom_sans duo fishnet_topwear grillby grillby_(underlust) grillby_au grillsans heart holding_hands ifunny intertwined_fingers male moaning nsfwshamecave pleasure_face purple_tongue sans sans_(underlust) sans_au seme_grillby skeleton tongue tongue_out top_grillby uke_sans undead underlust undertale_au white_background yaoi alternate_universe anal animated_skeleton blue_eyes blue_gloves bottom_sans dialog dialogue dominant_pov drool duo ectoplasm english_text game gay gloves grabbing_leg grillby grillby_(underswap) grillby_au grillsans leg_grab legs_spread male male_pov on_back open_mouth orange_body penetrating_pov penetration penetrator_pov penis pov sans sans_(underswap) sans_au seme_grillby shandrawaka skeleton solo_focus speech_bubble spread_legs star-shaped_pupils star_eyes star_shaped_pupils symbol-shaped_pupils tears text text_bubble top_grillby uke_sans undead underswap undertale_au video_games yaoi 2boys alternate_universe animated_skeleton blue_blush blue_gloves blue_tongue blush bottomless bowtie dialogue duo embarrassed english_text fair fellatio gay glasses gloves grillby grillby_(underswap) grillby_au grillsans male male/male male_only oral pink_bowtie sans sans_(underswap) sans_au shandrawaka simple_background skeleton speech_bubble spiral_eyes suck sucking sucking_penis text undead underswap undertale_au white_background yaoi