Zooerasty
From Zoophilia Wiki
Zooerasty
This term was introduced by Krafft-Ebing to further differentiate this sexual variety. This should distinguish between sexual intercourse with animals and the general love between humans and animals ( zoophilia ). Many zoophiles not only have a close love relationship with their animals but also have sexual intercourse with them. Witnessing offspring from such acts is not possible.
Reference
https://web.archive.org/web/20070111014619/http://zoowiki.zetapin.de/index.php?title=Zooerastie