I feel bad about this but want to know the laws ahead of time just to be on the safe side in case anything would unexpectedly happen. There's a girl who I think is only 16 that hangs out with the adult crowd a lot and who is pursuing me. I'm 25. She comes over to my place and I let her hang out for awhile. Nothing ever happens. I don't want to do anything with her if it can get me in trouble but am fearful she will try something and I will get caught up and do something stupid. What are the laws and limits in this situation? Should I not let her come over anymore?

The laws and limits. Any or all of these could apply to your situation.

709.8 Lascivious acts with a child.
It is unlawful for any person eighteen years of age or older to perform any of the following acts with a child with or without the child's consent unless married to each other, for the purpose of arousing or satisfying the sexual desires of either of them:

1. Fondle or touch the pubes or genitals of a child.
2. Permit or cause a child to fondle or touch the person's genitals or pubes.
3. Solicit a child to engage in a sex act or solicit a person to arrange a sex act with a child.
4. Inflict pain or discomfort upon a child or permit a child to inflict pain or discomfort on the person.

Any person who violates a provision of this section shall, upon conviction, be guilty of a class "D" felony. A person who violates a provision of this section and who is sentenced to a term of confinement shall also be sentenced to an additional term of parole or work release not to exceed two years.

709.12 Indecent contact with a child.
A person eighteen years of age or older is, upon conviction, guilty of an aggravated misdemeanor if the person commits any of the following acts with a child, not the person's spouse, with or without the child's consent, for the purpose of arousing or satisfying the sexual desires of either of them:

1. Fondle or touch the inner thigh, groin, buttock, anus, or breast of the child.
2. Touch the clothing covering the immediate area of the inner thigh, groin, buttock, anus, or breast of the child.
3. Solicit or permit a child to fondle or touch the inner thigh, groin, buttock, anus, or breast of the person.
4. Solicit a child to engage in any act prohibited under section 709.8, subsection 1, 2, or 4.

709.14 Lascivious conduct with a minor.
It is unlawful for a person over eighteen years of age who is in a position of authority over a minor to force, persuade, or coerce a minor, with or without consent, to disrobe or partially disrobe for the purpose of arousing or satisfying the sexual desires of either of them.

Lascivious conduct with a minor is a serious misdemeanor.