A human-dolphin sex story

A self-described sex cult survivor, peyote enthusiast, and Wiccan, Malcolm Brenner claims to have had a nine-month sexual relationship with a female theme park dolphin in the '70s:

She began raking her teeth lightly against my arms and legs which was indescribably erotic. Some might find it frightening, I found it erotic [...]

The dolphin initiated the whole sexual thing. As I mentioned, she was in isolation—she'd be using me to satisfy her sexual needs [...]

Here is an excerpt from Wet Goddess, in which the protagonist diddles his dolphin lover while his prudish human girlfriend watches, unaware:

She rolled in my arms, bringing her head up and pushing us farther out, so my feet came off the bottom. A second later, I felt her genital slit pressing the waffled soles of my sneakers. But her efforts seemed half-hearted compared to her usual flagrance, as if she found the audience inhibiting.
Cut that out! I thought.

Ruby was gentle and circumspect, but she wouldn't stop. She stared blankly, pretending she couldn't receive me, trying to convince me that human-dolphin telepathy was a stupid fantasy I'd dreamed up while getting stoned one night.

Gawker. A man's dolphin sex memoir suddenly very popular.

Amazon customer's comment –Franklin H. Fischer– on Wet Goddes:
(I've owned a guinea pig for a couple years now. Her name is Fluffy, and I'm pretty sure she flirts with me. She squeaks enthusiastically when I pet her back, lets me feed her alfalfa sprouts by hand, and sometimes lightly nibbles on my fingers.
After reading Wet Goddess, I now know that Fluffy IS flirting with me and signaling that she wants a more intimate relationship. I told her it's time to stop playing games and let's do this if we're gonna do this. She seemed receptive, so I'm taking her out on a date this Friday. We're doing a tour of a mulching company and will sample some wood chips at the end of it. After we've had our fill, we'll go the McDonalds playland because they have those tubes you can crawl in, and I know Fluffy loves crawling thru tubes.
Look, I know people are going to judge when they see me walking around town with a gorgeous guinea pig in my arms, but whatever. They're just jealous haters who don't understand the bond one can feel with a different species.
There will be obstacles to overcome in this relationship, but there are challenges in every relationship. It's all about compromise. I'm trying to teach Fluffy to stop pooping on herself, and she's teaching me how to drink water from an upside-down bottle.)