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A frisky Florida couple caught on camera having sex on a crowded family-friendly beach was found guilty Monday of lewd and lascivious exhibition — and now must register as sex offenders.

The randy pair — 40-year-old Jose Caballero and 20-year-old Elissa Alvarez — could each be sentenced to up to 15 years in prison, reported NBC affiliate WFLA.

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State prosecutors said they plan to seek a harsher sentence against Caballero because he served time for a prior cocaine-trafficking conviction. A sentencing date was not immediately announced.

The risque romp on Cortez Beach in Bradenton last July garnered local attention as the "Sex on the Beach" case.

A grandmother who testified at the trial against Caballero and Alvarez caught the afternoon delight on her iPhone. She said Monday her then-3-year-old granddaughter was among the children who got a live lesson on the birds and the bees.

"(The child) wanted me to explain what they were doing," testified April Champ, according to the Bradenton Herald. "I redirected her and we looked at seashells."

Bradenton Police Officer Eric Hill, who responded to the scene, said the turned-on twosome claimed they were merely "cuddling and wrestling."

"This isn't an after-hours disco that people can use for a garbage can," Hill told WFLA on Monday. "This is the root of family."

Elissa Alvarez, 20, and Jose Caballero, 40, were found guilty of lewd and lascivious exhibition after they were caught having sex on a Florida beach. Tiffany Tompkins-Condie / Bradenton Herald

— Erik Ortiz