Though it probably doesn't come with any vehemence, dolphins have been known to physically and sexually assault humans.
They are one of the few species (that we know of) that has sex for fun. Unfortunately, they don't have borders like we do when it comes to sexuality. They will try to have sex with humans.
Weighing 400-600 pounds means that these amazing creatures can pose a deadly threat to divers if they're feeling randy. Adolescent males are known to travel in groups and can aggressively attempt intercourse, sometimes dragging people under and killing them in the process. Fortunately, there's no gruesome video of that here.
Calling it rape is a bit extreme, as they don't seem to have the same preconceptions that humans have, though their sexuality does seem to overtake them.
Nature loves you, but it will try to kill you if you don't act smart. Now you know what dolphins are capable of.