How does the law affect an 18 year old male having sex with his 16 year old girlfriend?
Yes it is against the law. However the Romeo and Juliet law would protect the 18 year old from having to register as a sex offender. However he may still be prosecuted for statutory rape. A 16 year old can not consent. Consent is not a defense. Mistaken belief of age is not a defense. Make sure you check valid ID's or your life can be ruined by being charged with lewd assault. You can be sentenced to 15 years in prison.