A Casper man has admitted to having sex with minors.

Twenty-one year old Andrew Nelson has changed his plea to guilty on two counts of second degree sexual assault of a minor.

Prosecutors say between February 2010 and December 2011, Nelson had inappropriate sexual contact with a number of girls that were at least fourteen years old.

One of the girls was a runaway he took into Nebraska.

Nelson and the girls eventually admitted to investigators the incidents occurred.

He will be sentenced at a later date and could receive up to 20 years in prison.