Dating between a 16-year-old and an 18-year-old is legal in Texas on its own terms. Going to movies, texting, holding hands, spending time together: none of that breaks any law. The line the law draws is sexual activity. Texas sets the age of consent at 17, so a 16-year-old cannot legally consent to sex with anyone, no matter how small the age gap.1State of Texas. Texas Penal Code 22.011 – Sexual Assault Texas does have a close-in-age affirmative defense that can protect the older partner in a two-year-gap situation, but it works differently than most people assume.
Where the Legal Line Actually Sits
Under the Texas Penal Code, a “child” for sexual offense purposes means anyone younger than 17.1State of Texas. Texas Penal Code 22.011 – Sexual Assault Sexual activity with someone under that age is sexual assault regardless of whether the younger person agreed, wanted it, or initiated it. Consent from someone under 17 has no legal weight. A mistaken belief about age doesn’t cure the problem either.
So the practical picture is this: the relationship is fine, but the moment sex enters it, the 18-year-old is the one holding all the criminal risk.
The Close-in-Age Defense
Texas has what people casually call a “Romeo and Juliet” law. The nickname oversells it. It is not a rule that prevents arrest or blocks prosecutors from filing charges. It is an affirmative defense, which means the 18-year-old can still be arrested, booked, and charged. The defense only kicks in later, in court, where the defendant’s lawyer has to prove the facts fit every requirement.1State of Texas. Texas Penal Code 22.011 – Sexual Assault
To succeed, all of the following must be true:
- The older person was no more than three years older than the younger person.
- The younger person was at least 14.
- The older person was not already required to register as a sex offender and had no prior reportable conviction for the same type of offense.
A 16-and-18 pairing sits inside the three-year window, so the defense would generally apply if the other conditions are met.1State of Texas. Texas Penal Code 22.011 – Sexual Assault Applying and guaranteeing safety are not the same thing though. Someone raising this defense has already been arrested, has already retained a lawyer, and is already in the system. An arrest record can surface on background checks even when no conviction ever follows.
What Happens If the Defense Doesn’t Apply
If any element of the defense fails, or if it never gets raised, the charges are serious.
Sexual Assault
Sexual penetration involving someone under 17 is sexual assault, a second-degree felony.1State of Texas. Texas Penal Code 22.011 – Sexual Assault The punishment range is 2 to 20 years in prison and a fine of up to $10,000.2State of Texas. Texas Penal Code 12.33 – Second Degree Felony Punishment
Indecency With a Child
Sexual contact that stops short of penetration, such as intentional touching, can be charged as indecency with a child. Touching is a second-degree felony carrying the same 2-to-20-year range. Exposure without contact is a third-degree felony. The indecency statute has its own close-in-age defense with additional requirements beyond those in the sexual assault statute, including that the parties be of the opposite sex and that no force, duress, or threats were involved.3State of Texas. Texas Penal Code 21.11 – Indecency With a Child
Sex Offender Registration
A conviction for sexual assault of a child or indecency with a child triggers mandatory sex offender registration under Chapter 62 of the Texas Code of Criminal Procedure.3State of Texas. Texas Penal Code 21.11 – Indecency With a Child Registration reaches far past sentencing. It restricts where a person can live, limits employment, blocks military enlistment in many cases, and puts the person on a public list for years or, in some cases, for life. This is often the piece young defendants underestimate when they consider a plea. Winning the close-in-age defense prevents the conviction, which prevents registration, and that alone can matter more than the sentence itself.
Photos, Texts, and Explicit Messages
Even without any physical contact, sending sexual images or explicit messages can create its own criminal exposure. Two different Texas statutes come into play depending on who is doing the sending.
If the 16-Year-Old Sends
Texas has a specific statute for sexting between minors. When a minor electronically sends sexual images of themselves or another minor, the first offense is a Class C misdemeanor, the same level as a traffic ticket. The statute also carries an affirmative defense: the image depicted only the sender or a dating partner within two years of age, and it was shared only between those two people.4State of Texas. Texas Penal Code 43.261 – Electronic Transmission of Certain Visual Material Depicting Minor A 16-year-old sending to an 18-year-old partner fits the two-year gap.
If the 18-Year-Old Sends
The teen sexting statute only applies when the sender is a minor, so it does not cover the 18-year-old. Sending sexually explicit material to a person under 18 falls under a different law: distribution of harmful material to a minor, a Class A misdemeanor punishable by up to one year in jail and a fine of up to $4,000.5State of Texas. Texas Penal Code 43.24 – Sale, Distribution, or Display of Harmful Material to Minor The material doesn’t have to depict the sender. Any sexually explicit content knowingly sent to someone under 18 qualifies.
What Parents Can Do
Parents keep considerable legal authority over minor children in Texas, and a parent who disapproves of the relationship has real tools. They cannot criminalize conduct that is otherwise legal, but they don’t have to.
Protective orders are the most direct route. A parent can seek one on behalf of a child in situations involving violence, threats, sexual offenses, or stalking.6Texas State Law Library. Getting an Order – Protective Orders If a parent frames the relationship as involving illegal sexual activity with someone under 17, the facts may support an order that bars the 18-year-old from contacting, approaching, or communicating with the 16-year-old. Violating such an order is itself a crime.
Parents can also cut off phone and social media access, control where the 16-year-old goes, and report the older partner to police. Even if the close-in-age defense would ultimately win the case, a report is enough to open an investigation, and the investigation itself can upend the 18-year-old’s life.
Crossing State Lines Changes Everything
Federal law does not follow Texas’s rules once travel is involved. Transporting someone under 18 across state lines with the intent that the person engage in any sexual activity criminal under state or federal law carries a mandatory minimum of 10 years in federal prison, with a maximum of life.7Office of the Law Revision Counsel. 18 USC 2423 – Transportation of Minors Actual sexual activity is not required; the crime is complete based on intent and travel. A weekend trip planned around being intimate is enough. Federal prosecutors are not bound by Texas’s close-in-age defense, and federal sentencing runs far harsher than what Texas courts hand down for comparable conduct.