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original
2boys
3d
abs
alien
anal
ass
balls
bara
big_balls
big_penis
black_body
black_hair
commander_shepard
digital_media_(artwork)
duo
erection
gay
genitals
hair
hi_res
human
human_on_humanoid
humanoid
interspecies
krogan
larger_humanoid
larger_male
male
male/male
male_only
maleshep
mammal
mass_effect
multicolored_body
muscular
muscular_human
muscular_humanoid
muscular_male
nude
oral
pecs
penis
rimming
rooking
sex
size_difference
smaller_human
smaller_male
urdnot_grunt
yaoi
yellow_body
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