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2010s
2015
2boys
animated_skeleton
big_dom
big_dom_small_sub
bigger_dom
bigger_dom_smaller_sub
black_hair
blue_blush
blue_dick
blue_eyes
blue_penis
blue_pupils
blue_testicles
blue_tongue
blush
blushing
ectopenis
frottage
frotting
gay
groping
hair_over_one_eye
humanoid_robot
male
male/male
male_only
meta_request
mettaton
mettaton_ex
outercourse
partially_colored
penis
penis_on_penis
pink_penis
pleasure_face
pleasured_face
robot
robot_humanoid
robotic_penis
sans
sans_(undertale)
sans_blush
sans_eye
sans_glowing_eye
sans_penis
shirt_lift
shirt_up
skeleton
small_sub
small_sub_big_dom
smaller_sub
spoopy-latte
tongue
tongue_out
undead
undertale
undertale_(series)
yaoi
tags