Here is a link to the actual legislation:
(c) Engages in sexual contact; with a person whom he or she knows to be his or her parent, child, grandparent, grandchild, great-grandparent, great-grandchild, uncle, aunt, nephew, niece, brother, sister,~~[ first cousin,]~~ ancestor, or descendant. The relationships referred to herein include blood relationships of either the whole or half blood without regard to legitimacy, relationship of parent and child by adoption, relationship of stepparent and stepchild, and relationship of stepgrandparent and stepgrandchild.
First cousin is crossed out.
Remember everyone, this is the party of “family values.”
Edit: Nick Wilson now claims this was filed in error. See the new thread.