Sexual battery is a level 6 felony or a Level 4 felony if aggravated.
For prohibited sexual contact with 14 or 15 year olds, Indiana has a sexual misconduct with a minor law: If the victim is under 14, the crime of sex or sexual conduct is called child molestation, a Level 3 felony.
A person can be convicted of attempted child molestation, if he or she believed the child to be under 14 at the time, even if the child wasn't.
Innocence, insanity, and other defenses can apply to rape.
Aggravating circumstances increase penalties because of their serious or malicious nature. However, Indiana has a "Romeo and Juliet law" that permits 14 and 15 year olds to engage in non-forced sexual activity with peers who are no more than 4 years older than themselves.