FURVERT!

1:1 2d_animation animal_genitalia animal_penis animated animated_gif anthro balls balls_expansion barefoot becoming_erect bent_legs big_balls big_penis bodily_fluids brown_body brown_fur bulge canid canine canine_genitalia canine_penis casual_erection casual_exposure casual_hyper clothed clothing concentration controller cum cumshot curling_toes ejaculation erection expansion feet frame_by_frame fur game_controller gaming gaming_chair genital_expansion genital_fluids genitals grey_background growing_bulge growth hands-free huge_penis hyper hyper_genitalia hyper_penis knot leaning looking_pleasured male mammal penis penis_expansion playing_video_game sheath shirt short_playtime sightsear simple_background sitting skinny solo spread_legs spreading tank_top throbbing throbbing_penis tongue tongue_out topwear torn_clothing