A person who is only attracted to members of the same family, clan, group, or community. The sexual counterpart to Endogamy and Endoromantic.
Unfortunately, this does mean incest...
The Greek Gods and many parts of early Greekculture were endosexual and endogamous.
Being sexually attracted to people of whom you are jealous, regardless of their gender or sexuality; A bisexual or pansexual person who is predominantly attracted to people who have traits they lack and/or desire.
That chubby girlmust be envisexual, because she will only date skinny people.