Mounted by a Monster: Werepuffer

Dana is a marine biologist working in a top-secret research facility with a deadly strain of piranha. Late one night, an accident causes her to fall into the tank of deadly fish. Luckily, sexy Paul from the Pufferfish Division has a few tricks that might save Dana. What Dana doesn’t realize is just how unnatural his tricks are, and that they extend to every part of his male anatomy.

This paranormal erotic short story is about 3,600 words.