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original
2boys
2d
alternate_universe
animated_skeleton
artist_name
blush
cum
cumshot
ectopenis
heart
heki_(artist)
killer_sans
killer_sans_(fan_character)
killertale
male
male/male
male_only
moaning
penis
sans
sans_au
sex
skeleton
solo_focus
tagme
undertale
undertale_(series)
undertale_au
yaoi
tags