(c) Any person who engages in an act of unlawful sexual
intercourse with a minor who is more than three years younger than
the perpetrator is guilty of either a misdemeanor or a felony, and
shall be punished by imprisonment in a county jail not exceeding one
year, or by imprisonment in the state prison.
(d) Any person 21 years of age or older who engages in an act of
unlawful sexual intercourse with a minor who is under 16 years of age
is guilty of either a misdemeanor or a felony, and shall be punished
by imprisonment in a county jail not exceeding one year, or by
imprisonment in the state prison for two, three, or four years.
(e) (1) Notwithstanding any other provision of this section, an
adult who engages in an act of sexual intercourse with a minor in
violation of this section may be liable for civil penalties in the
following amounts:
(A) An adult who engages in an act of unlawful sexual intercourse
with a minor less than two years younger than the adult is liable for
a civil penalty not to exceed two thousand dollars ($2,000).
(B) An adult who engages in an act of unlawful sexual intercourse
with a minor at least two years younger than the adult is liable for
a civil penalty not to exceed five thousand dollars ($5,000).
(C) An adult who engages in an act of unlawful sexual intercourse
with a minor at least three years younger than the adult is liable
for a civil penalty not to exceed ten thousand dollars ($10,000).