You feel strange. You see a beard growing rapidly on your face. Grey fur starts covering all your body. You rub faster as the changes continue. You can feel your feet changing. A strange pressure develops on the sides of your head. The pressure is released in the form of two horns. You finally climax as your body finishes changing, a bestial and strangely appropriate noise escapes your mouth turned muzzle. You look in the mirror and see that you've become an anthromorphic goat. You admire the image, as well as the large bulge in your pants.
You find yourself wanting to have more sex - to test your new equipment with another.