3_toes absurd_res ambiguous_species anthro armor assault_rifle boots clothed clothing combine_elite digitigrade feet footwear gun half-life half-life_2 headgear helmet hi_res machine male military protogen ranged_weapon rifle smoking_gun soldier solo standing toes valve warrior weapon wolfdawg  1_eye anthro big_butt blood bodily_fluids butt combine_elite defective_turret_(portal) femboy half-life half-life_entropy_zero huge_butt humanoid lutha machine male nude portal_(series) robot slim solo spank_marks valve wilson_(half-life_entropy_zero)  1:1 alpha_channel anthro armor avian beak bird body_armor clothing combine_elite corvid cybernetics electroshock_weapon gloves green_eyes half-life_2 handwear head_tuft machine male oscine passerine raymund_(raymundcrow) raymundcrow solo stun_baton tuft weapon  16:9 3d_(artwork) 4k absurd_res alien anal anal_penetration animal_genitalia animal_penis armor balls big_balls big_penis black_mesa blender_(artwork) blender_eevee bodily_fluids clothed clothing clothing_aside combine_assassin combine_elite cum cum_in_ass cum_inside dicidius digital_media_(artwork) duo equine_genitalia equine_penis forced foreskin from_behind_position genital_fluids genitals gynomorph gynomorph/male half-life half-life_2_beta half-life_alyx headgear helmet hi_res human humanoid intersex intersex/male male mammal panties panties_aside partially_clothed partially_retracted_foreskin penetration penis questionable_consent rear_view rough_sex sex underwear underwear_aside valve vortigaunt widescreen  16:9 3d_(artwork) 4k absurd_res alien animal_genitalia animal_penis armor bdsm being_watched black_mesa blender_(artwork) blender_eevee bodily_fluids clothed clothing clothing_aside combine_assassin combine_elite cum cum_drip cum_string dicidius digital_media_(artwork) dildo dripping duo equine_genitalia equine_penis erection foreskin fucking_machine genital_fluids genitals gynomorph half-life half-life_2_beta half-life_alyx headgear helmet hi_res human humanoid immobilization intersex laboratory looking_at_another machine male mammal not_furry nude partially_clothed partially_retracted_foreskin penis questionable_consent restrained restraint_device sex_toy underwear underwear_aside valve vortigaunt widescreen  2014 aisha_(sinaqua) alien anthro ar2 biped breasts canid canine canis combine combine_elite combine_soldier domestic_dog duo energy_weapon female genitals glowing half-life half-life_2 halo_(series) hi_res husky mammal microsoft nordic_sled_dog pittie. positronic presenting pussy sangheili solo_focus spitz valve weapon wolf xbox_game_studios  combine combine_assassin combine_elite gmod half-life half-life_2  combine combine_assassin combine_elite gmod half-life half-life_2  combine_assassin combine_elite half-life tagme  combine_assassin combine_elite gmod tagme  combine_assassin combine_elite half-life rule_34 tagme  combine_assassin combine_elite half-life rule_34 tagme  combine_assassin combine_elite half-life rule_34 tagme  combine_assassin combine_elite half-life rule_34 tagme  combine_assassin combine_elite gmod half-life_2 tagme  combine_assassin combine_elite gmod half-life_2 tagme  combine combine_assassin combine_elite gmod half-life_2  combine combine_assassin combine_elite gmod half-life_2 wallace_breen  combine combine_assassin combine_elite gmod half-life half-life_2  combine_assassin combine_elite half-life_2 tagme  combine_assassin combine_elite gmod half-life_2 tagme  combine_assassin combine_elite gmod half-life_2 tagme  combine_assassin combine_elite gmod half-life_2 metrocop prison_guard  combine_assassin combine_elite gmod half-life_2 metrocop prison_guard  citizen combine_elite crossover gmod half-life half-life_2 scout's_mother syncmaster757dfx team_fortress_2  citizen combine_elite crossover gmod half-life half-life_2 scout's_mother syncmaster757dfx team_fortress_2  citizen combine_elite crossover gmod half-life half-life_2 scout's_mother syncmaster757dfx team_fortress_2  combine_assassin combine_elite combine_soldier gmod half-life half-life_2  combine combine_assassin combine_elite gmod half-life half-life_2  combine_assassin combine_elite half-life_2 metrocop prison_guard  backpage combine combine_assassin combine_elite half-life overwatch  backpage combine combine_assassin combine_elite half-life overwatch  backpage combine combine_assassin combine_elite half-life overwatch  backpage combine combine_assassin combine_elite half-life overwatch  backpage combine combine_assassin combine_elite half-life overwatch  animated combine_assassin combine_elite half-life tagme  alyx_vance combine combine_elite gmod half-life half-life_2 vortigaunt