16:9 3d_(artwork) 4k absurd_res against_surface alien belly big_belly big_breasts big_butt body_control brainwashing breasts breasts_on_glass butt corruption digital_media_(artwork) female female/female female_headcrab group half-life half-life_2 headcrab headcrab_zombie hi_res hornycrab_(soldierhunterm) host human hypnosis mammal mind_break mind_control monster_girl_(genre) nipples nude nude_female on_glass parasite pregnant soldierhunterm source_filmmaker standing submissive submissive_female takeover thick_thighs undead valve video_games widescreen zombie