I believe the other attorney is incorrect. 16 is the legal age of consent for sex in Florida. Having sex with a 15 y/o is a lewd act, punishible by up to 15 years in prison and designation as a sex offender, even if the other person was under 18. However, because the two are less than 4 years apart in age, the S.O. designation can be avoided, as well as any jail sentence. This would fall under the Florida Romeo and Juliet act. Please see an attorney if a report has been made.
Mr. Waggoner is correct. It is illegal for a 16 year-old to have sex with a 15 year-old; even if it was consensual. However, the sex offender designation might be avoidable under Florida's Romeo and Juliet law.