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2boys
2d
animated_skeleton
blush
blush_lines
bottom_sans
bottomless
clothed
clothed_male
digital_media_(artwork)
duo
ectoplasm
elemental_creature
elemental_humanoid
fingering
fingering_another
fingering_partner
fire_elemental
ganzooky
glasses
glowing
grillby
grillsans
hand_on_another's_shoulder
handjob
humanoid
kneeling
line_art
lineart
looking_away
male
male_only
monochrome
monster
monster_boy
mutual_masturbation
nsfwsinningsans
partially_clothed
penis
sans
sans_(undertale)
seme_grillby
skeleton
standing
tongue_out
top_grillby
uke_sans
undead
undertale
undertale_(series)
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