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2012 animal_genitalia animal_penis anthro balls biped bodily_fluids canid canine canine_genitalia canine_penis clothed clothing cum erection eyes_closed fox genital_fluids genitals kiro_(kilometers)knot looking_pleasured lying male mammal masturbation orgasm partially_clothed penile penile_masturbation penis precum precum_on_hand solo tail underwear underwear_down waywardmutt whiskers