Here is the definition of sexual orientation as defined for purpose of the bill, SB3186.
(O-1) Sexual orientation. "Sexual orientation" means
24 actual or perceived heterosexuality, homosexuality,
25 bisexuality, or gender-related identity, whether or not
26 traditionally associated with the person's designated sex at
27 birth. "Sexual orientation" does not include a physical or
28 sexual attraction to a minor by an adult.http://www.ilga.gov/legislation/fulltext.asp?DocName=09300SB3186ccr001&GA=93&SessionId=3&DocTypeId=SB&DocNum=3186&GAID=3