alien
alien_humanoid
all_fours
anal
anal_penetration
biceps
bioware
butt
duo
electronic_arts
hand_on_head
holding_head
humanoid
machine
male
male/male
mass_effect
monochrome
muscular
muscular_humanoid
muscular_male
nude_humanoid
nude_male
pecs
penetration
quarian
robot
robot_humanoid
tres-art
triceps
zal'haar
