For those wondering, 18 is the federal law for age of consent but that is only if someone crosses state lines.
If you stay within state, state law apply and that can be younger for most of the country.
Here is the break down from wiki
age of consent 16: Alabama, Alaska, Arkansas, Connecticut, District of Columbia, Georgia, Hawaii, Indiana, Iowa, Kansas, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Montana, Nevada, New Hampshire, New Jersey, North Carolina, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, South Dakota, Vermont, Washington, West Virginia
age of consent 17: Colorado, Illinois, Louisiana, Missouri, Nebraska, New Mexico, New York, Texas, Wyoming
age of consent 18: Arizona, California, Delaware, Florida, Idaho, North Dakota, Oregon, Tennessee, Utah, Virginia, Wisconsin