IC 35-46-1-3 Incest Sec. 3. (a) A person eighteen (18) years of age or older who engages in sexual intercourse or deviate sexual conduct with another person, when the person knows that the other person is related to the person biologically as a parent, child, grandparent, grandchild, sibling, aunt, uncle, niece, or nephew, commits incest, a Class C felony. However, the offense is a Class B felony if the other person is less than sixteen (16) years of age.
(b) It is a defense that the accused person's otherwise incestuous relation with the other person was based on their marriage, if it was valid where entered into.
WOW.......I mean,yeah, he's cute, but WTF? THAT's just wrong on SOOOO many levels, but I guess it just proves all the "good" one's are taken....by Granny