The Texas legislature says 17, and this means that a person over 17 can consent to sex with any other adult, regardless of the age difference between them. 14 is less than 17 obviously so a different law governs. The age of consent in Texas is 17 (14 if the other person is within 3 years of the age of the younger child). Check with a lawyer in your locale to discuss more of the details.
Good luck to you.
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It is not illegal so long as the age difference is less than three whole years. The affirmative defense to this crime does not apply for a person who is three years and one day older.
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