Is it illegal to moon someone in Illinois?

Is it illegal to moon someone in Illinois?

ROCKFORD, Ill. (WTVO) — No ifs, ands, or butts about it! Think twice before mooning someone in Illinois. A gesture often used as a way to prank someone, could it get you arrested in Illinois? According to Illinois law, public indecency is always considered a sex crime, and there are two forms of public indecency that are against the law. One is having sex with another person in public. The other is “a lewd exposure of the body done with the inte…