This Barcelona brothel replaced women with busty sex dolls to allow clients to act out their “wildest fantasies” — things they would never try with a real person.

Lumidolls, which operates at a secret location in the Spanish city, opened earlier this year, claiming to be the world’s first sex doll brothel.

Customers can choose from four “hyper-realistic” working girls, who have been crafted from a thermoplastic elastomer, reported the Metro.

The seedy venue has been dogged by controversy from the start.

Owner Sergi Prieto admitted he was forced to turn away some sick individuals who wanted to act out a “rape fantasy.”

Local residents kicked up a storm and the facility faced a number of complaints.

Cops raided the premises, near the tourist hotspot Las Ramblas, but they found the owner had closed the business already.

However, Lumidolls is still booming — it’s just become more secretive. Now, when customers pay online, they learn the new whereabouts of the secret sex doll-filled brothel.

Hundreds of plastic-loving fun seekers have flocked to Barcelona to live out their most unusual desires.

Prieto said: “Customers come to seek new sexual experiences and new ways of living sex.”

“Like us, they believe that this is the beginning of the sex of the future.”

Metro reports that customers who don’t want to leave their own location can pay $275 for a home service.

On-premises sessions are around $90 for 30 minutes or up to $210 for two hours.

Customers are encouraged to wear condoms and each doll is disinfected with a “special antibacterial soap.”

What goes on in the private rooms, which feature plasma TVs and adult films, remains private.

Visitors can specify how the four girls — Katy, Kanda, Lily and Yoko — are positioned, and have three fetish looks to choose from: executive, schoolgirl or fitness woman.

Prieto has plans to expand the business worldwide.

The Lumidolls store has 54 “girls” that cater to every possible taste, with prices starting at just under $2,000.

But the Association of Sex Professionals has slammed the flourishing business, saying sex dolls can never recreate the intimacy provided by humans.

It said: “The sex affection of a person cannot be provided by a doll.”

“They do not communicate. They do not listen to you or caress you, they do not comfort you or look at you.”