Yeah, I think it's hilarious, and very sweet, and really creepy all at once.
I'm not one for expressing my love and trust for an animal, even a very intelligent one, via a sexual encounter, but, uh, I guess if it's consentual and neither party is harmed, then... It's pretty freakin' weird, no matter how you look at it.
For the record, I found this site after my girlfriend was being silly and reccomended we "do it like dolphins." I was wondering how exactly dolphins had sex, so I looked it up and found that. And I knew the Spoon would get a kick out of it, too.
People, please try to behave yourselves as much as this topic will allow...