The following information was taken directly from the Indiana state legislation website at http://www.in.gov/legislative/ic/code/title35/ar42/

IC 35-42-4
Chapter 4. Sex Crimes

IC 35-42-4-3
Child molesting
Sec. 3. (a) A person who, with a child under fourteen (14) years of age, performs or submits to sexual intercourse or deviate sexual conduct commits child molesting, a Class B felony. However, the offense is a Class A felony if:
(1) it is committed by a person at least twenty-one (21) years of age;
(2) it is committed by using or threatening the use of deadly force or while
armed with a deadly weapon;
(3) it results in serious bodily injury; or
(4) the commission of the offense is facilitated by furnishing the victim, without the victim’s knowledge, with a drug (as defined in IC 16-42-19-2(1)) or a controlled substance (as defined in IC 35-48-1-9) or knowing that the victim was furnished with the drug or controlled substance without the victim’s knowledge.
(b) A person who, with a child under fourteen (14) years of age, performs or submits to any fondling or touching, of either the child or the older person, with intent to arouse or to satisfy the sexual desires of either the child or the older person, commits child molesting, a Class C felony. However, the offense is a Class A felony if:
(1) it is committed by using or threatening the use of deadly force;
(2) it is committed while armed with a deadly weapon; or
(3) the commission of the offense is facilitated by furnishing the victim, without the victim’s knowledge, with a drug (as defined in IC 16-42-19-2(1)) or a controlled substance (as defined in IC 35-48-1-9) or knowing that the victim was furnished with the drug or controlled substance without the victim’s knowledge.
(c) It is a defense that the accused person reasonably believed that the child was sixteen (16) years of age or older at the time of the conduct. As added by Acts 1976, P.L.148, SEC.2. Amended by Acts 1977, P.L.340, SEC.38; Acts 1978, P.L.82, SEC.2; Acts 1981, P.L.301, SEC.1; P.L.79-1994, SEC.12; P.L.33-1996, SEC.8; P.L.216-1996, SEC.18; P.L.31-1998, SEC.5.

IC 35-42-4-4
Child exploitation; possession of child pornography; violation classification; exemption; definitions
Sec. 4. (a) As used in this section: "Disseminate" means to transfer possession for free or for a
consideration. "Matter" has the same meaning as in IC 35-49-1-3.

"Performance" has the same meaning as in IC 35-49-1-7. "Sexual conduct" means sexual intercourse, deviate sexual conduct, exhibition of the uncovered genitals intended to satisfy or arouse the sexual
desires of any person, sado-masochistic abuse, sexual intercourse or deviate sexual conduct with an animal, or any fondling or touching of a child by another person or of another person by a child intended to arouse or satisfy the sexual desires of either the child or the other person. (b) A person who knowingly or intentionally:
(1) manages, produces, sponsors, presents, exhibits, photographs, films, videotapes, or creates a digitized image of any performance or incident that includes sexual conduct by a child under eighteen (18) years of age;
(2) disseminates, exhibits to another person, offers to disseminate or exhibit to another person, or sends or brings into Indiana for dissemination or exhibition matter that depicts or describes sexual conduct by a child under
eighteen (18) years of age; or
(3) makes available to another person a computer, knowing that the computer’s fixed drive or peripheral device contains matter that depicts or describes sexual conduct by a child less than eighteen (18) years of age; commits child exploitation, a Class C felony.
(c) A person who knowingly or intentionally possesses:
(1) a picture;
(2) a drawing;
(3) a photograph;
(4) a negative image;
(5) undeveloped film;
(6) a motion picture;
(7) a videotape;
(8) a digitized image; or
(9) any pictorial representation; that depicts or describes sexual conduct by a child who is less than sixteen (16) years of age or appears to be less than sixteen (16) years of age, and that lacks serious literary, artistic, political, or scientific value commits possession of child pornography, a Class D felony.
(d) Subsections (b) and (c) do not apply to a bona fide school, museum, or public library that qualifies for certain property tax exemptions under IC 6-1.1-10, or to an employee of such a school, museum, or public library
acting within the scope of the employee’s employment when the possession of the listed materials are for legitimate scientific or educational purposes. As added by Acts 1978, P.L.148, SEC.5. Amended by P.L.325-1983, SEC.1;
P.L.206-1986, SEC.1; P.L.37-1990, SEC.25; P.L.59-1995, SEC.3; P.L.216-1996, SEC.19; P.L.3-2002, SEC.2.

IC 35-42-4-5 Vicarious sexual gratification; sexual conduct in presence of a minor

Sec. 5. (a) A person eighteen (18) years of age or older who knowingly or intentionally directs, aids, induces, or causes a child under the age of sixteen (16) to touch or fondle himself or another child under the age of sixteen (16) with intent to arouse or satisfy the sexual desires of a child or the older person commits vicarious sexual gratification, a Class D felony. However, the offense is:
(1) a Class C felony if a child involved in the offense is under the age of
fourteen (14);
(2) a Class B felony if:
(A) the offense is committed by using or threatening the use of deadly force or while armed with a deadly weapon; or
(B) the commission of the offense is facilitated by furnishing the victim,
without the victim’s knowledge, with a drug (as defined in IC 16-42-19-2(1)) or a controlled substance (as defined in
IC 35-48-1-9) or knowing that the victim was furnished with the drug or controlled substance without the victim’s knowledge; and
(3) a Class A felony if it results in serious bodily injury.
(b) A person eighteen (18) years of age or older who knowingly or intentionally directs, aids, induces, or causes a child under the age of sixteen (16) to:
(1) engage in sexual intercourse with another child under sixteen (16) years of
age;
(2) engage in sexual conduct with an animal other than a human being; or
(3) engage in deviate sexual conduct with another person;
with intent to arouse or satisfy the sexual desires of a child or the older person commits vicarious sexual gratification, a Class C felony. However, the offense is a Class B felony if any child involved in the offense is less than
fourteen (14) years of age, and it is a Class A felony if the offense is committed by using or threatening the use of deadly force, if it is committed while armed with a deadly weapon, if it results in serious bodily injury, or if
the commission of the offense is facilitated by furnishing the victim, without the victim’s knowledge, with a drug (as defined in IC 16-42-19-2(1)) or a controlled substance (as defined in IC 35-48-1-9) or knowing that the
victim was furnished with the drug or controlled substance without the victim’s knowledge.
(c) A person eighteen (18) years of age or older who knowingly or
intentionally:
(1) engages in sexual intercourse;
(2) engages in deviate sexual conduct; or
(3) touches or fondles the person’s own body;
in the presence of a child less than fourteen (14) years of age with the intent to arouse or satisfy the sexual desires of the child or the older person commits performing sexual conduct in the presence of a minor, a Class D felony.
As added by P.L.183-1984, SEC.4. Amended by P.L.79-1994, SEC.13; P.L.31-1998, SEC.6; P.L.118-2002, SEC.1; P.L.123-2003, SEC.1.

IC 35-42-4-6
Child solicitation
Sec. 6. (a) As used in this section, "solicit" means to command, authorize, urge, incite, request, or advise an individual:
(1) in person;
(2) by telephone;
(3) in writing;
(4) by using a computer network (as defined in IC 35-43-2-3(a));
(5) by advertisement of any kind; or
(6) by any other means;
to perform an act described in subsection (b) or (c).
(b) A person eighteen (18) years of age or older who knowingly or intentionally solicits a child under fourteen (14) years of age, or an individual the person believes to be a child under fourteen (14) years of age, to engage in:
(1) sexual intercourse;
(2) deviate sexual conduct; or
(3) any fondling or touching intended to arouse or satisfy the sexual desires of either the child or the older person;
commits child solicitation, a Class D felony. However, the offense is a Class C felony if it is committed by using a computer network (as defined in IC 35-43-2-3(a)).
(c) A person at least twenty-one (21) years of age who knowingly or intentionally solicits a child at least fourteen (14) years of age but less than sixteen (16) years of age, or an individual the person believes to be a child at least fourteen (14) years of age but less than sixteen (16) years of age, to engage in:
(1) sexual intercourse;
(2) deviate sexual conduct; or
(3) any fondling or touching intended to arouse or satisfy the sexual desires of either the child or the older person;
commits child solicitation, a Class D felony. However, the offense is a Class C felony if it is committed by using a computer network (as defined in IC 35-43-2-3(a)).
(d) In a prosecution under this section, including a prosecution for attempted solicitation, the state is not required to prove that the person solicited the child to engage in an act described in subsection (b) or (c) at some immediate
time. As added by P.L.183-1984, SEC.5. Amended by P.L.11-1994, SEC.16; P.L.79-1994, SEC.14; P.L.216-1996, SEC.20; P.L.118-2002, SEC.2; P.L.124-2005, SEC.1.

IC 35-42-4-9
Sexual misconduct with a minor
Sec. 9. (a) A person at least eighteen (18) years of age who, with a child at least fourteen (14) years of age but less than sixteen (16) years of age, performs or submits to sexual intercourse or deviate sexual conduct commits sexual misconduct with a minor, a Class C felony. However, the offense is:
(1) a Class B felony if it is committed by a person at least twenty-one (21) years of age; and
(2) a Class A felony if it is committed by using or threatening the use of deadly force, if it is committed while armed with a deadly weapon, if it results in serious bodily injury, or if the commission of the offense is facilitated by furnishing the victim, without the victim’s knowledge, with a drug (as defined in IC 16-42-19-2(1)) or a controlled substance (as defined in IC 35-48-1-9) or knowing that the victim was furnished with the drug or controlled substance without the victim’s knowledge.
(b) A person at least eighteen (18) years of age who, with a child at least fourteen (14) years of age but less than sixteen (16) years of age, performs or submits to any fondling or touching, of either the child or the older person,
with intent to arouse or to satisfy the sexual desires of either the child or the older person, commits sexual misconduct with a minor, a Class D felony. However, the offense is:
(1) a Class C felony if it is committed by a person at least twenty-one (21) years of age; and
(2) a Class B felony if it is committed by using or threatening the use of deadly force, while armed with a deadly weapon, or if the commission of the offense is facilitated by furnishing the victim, without the victim’s knowledge, with a drug (as defined in IC 16-42-19-2(1)) or a controlled substance (as defined in IC 35-48-1-9) or knowing that the victim was furnished with the drug or controlled substance without the victim’s knowledge.
(c) It is a defense that the accused person reasonably believed that the child was at least sixteen (16) years of age at the time of the conduct. However, this subsection does not apply to an offense described in subsection (a)(2) or
(b)(2).
(d) It is a defense that the child is or has ever been married. However, this subsection does not apply to an offense described in subsection (a)(2) or
(b)(2).
As added by P.L.79-1994, SEC.15. Amended by P.L.33-1996, SEC.9;
P.L.216-1996, SEC.21; P.L.31-1998, SEC.8; P.L.266-2003, SEC.1.

(e) It is a defense to a prosecution under this section if all the
following apply:
(1) The person is not more than four (4) years older than the victim.
(2) The relationship between the person and the victim was a dating relationship or an ongoing personal relationship. The term “ongoing personal relationship” does not include a family relationship.
(3) The crime:
(A) was not committed by a person who is at least twenty-one (21) years of age;
(B) was not committed by using or threatening the use of deadly force;
(C) was not committed while armed with a deadly weapon;
(D) did not result in serious bodily injury;

(E) was not facilitated by furnishing the victim, without the victim’s knowledge, with a drug (as defined in
IC 16-42-19-2(1)) or a controlled substance (as defined in IC 35-48-1-9) or knowing that the victim was furnished
with the drug or controlled substance without the victim’s knowledge; and
(F) was not committed by a person having a position of authority or substantial influence over the victim.
(4) The person has not committed another sex offense (as defined in IC 11-8-8-5.2) (including a delinquent act that
would be a sex offense if committed by an adult) against any other person.