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3d_(artwork)
3d_animation
animated
anthro
aquatic
ball_size_difference
balls
becoming_erect
big_balls
big_penis
black_background
burstingseas
canid
canine
digital_media_(artwork)
echinoderm
erection
eulipotyphlan
flaccid
fox
genitals
group
hedgehog
humanoid_genitalia
humanoid_penis
knuckles_the_echidna
male
male/male
mammal
miles_prower
no_sound
penis
penis_size_difference
sega
short_playtime
simple_background
sonic_the_hedgehog
sonic_the_hedgehog_(series)
source_filmmaker_(artwork)
trio
video