Xenosexuality 

Xenosexuality is a sexuality in which humans will be sexually or romantically attracted to Alien races, such as species that are from beyond the Solar System, this differs from Zoophilia or Bestiality, as in, both the Human and the Alien both consent and have the ability to consent.

"Xenosexuality is most often seen as an extension of Zoophilia, even if they are different."

Xenosexuality by A Random Fellow January 20, 2023