2:3
alternate_species
android
artificial_intelligence
bound
cable
digital_creature
dominant
dominant_female
doug_rattmann_(portal)
duo
female
glados
grope
human
humanoid
humanoidized
imminent_rape
imminent_sex
machine
male
mammal
not_furry
portal_(series)
robot
robot_humanoid
scientist
source_request
submissive
submissive_male
unknown_artist
valve
valve_corporation
wire