No, if you are an adult (18) and she is a minor (16), you cannot have sex legally unless you are married.
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Attorney Brown is not from Ohio and it appears that she did not research her answer. ORC 2907.04 provides that a person who is eighteen years old or older and knowingly or recklessly has sexual conduct with a person who is thirteen or older or less than sixteen is guilty of unlawful sexual conduct with a minor.
Although I do not recommend that minors engage in sexual conduct for many reasons, a sixteen year old is able to give consent.
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