FURVERT!

alien ambiguous_gender attached big_butt bubble_butt butt butt_jiggle ct dangling fellatio freckled_butt freckles guywithdapen half-life half-life_2 headcrab jiggling jumping lying male mandibles monochrome motion_lines on_front onomatopoeia oral penile presenting presenting_hindquarters sex sound_effects strutting surprise_blowjob text thick_thighs tongue tongue_out valve valve_corporation