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3d_(artwork)3d_animation 4:3 alien angry animal_genitalia animal_penis animated anthro audible_throbbing balls balls_expansion big_balls big_butt big_penis blender_(artwork)blender_eevee_(artwork)butt butt_expansion chat digital_media_(artwork)duo equine_genitalia equine_penis expansion garry's_mod genital_expansion genital_growth genitals gm_construct growth gurgle_(sound_effect)half-life half-life_2 heartbeat huge_balls huge_butt huge_penis huge_thighs humor hyper hyper_balls hyper_butt hyper_genitalia hyper_penis hyper_thighs male male/male medial_ring non-mammal_balls onyxsplash penis penis_expansion penis_growth physgun short_playtime sound sound_effects sound_warning surprised thick_thighs throb throbbing throbbing_balls throbbing_penis tool_gun unavailable_at_source valve valve_corporation video vortigaunt