This is the shocking moment a violent Thai ladyboy used their high heels to attack a tourist for groping their crotch to check the gender.

Transgender prostitute Mintra, 29, repeatedly bashed holidaymaker Sepala, 54, with the footwear in depraved seaside town Pattaya, Thailand, on May 31.

The pair reportedly agreed on a 2,000 baht fee, but Sepala was said to have changed his mind when he fondled Mintra - only to find they had a penis and testicles.

The hooker allegedly flew into a rampage and started attacking the Sri Lankan tourist in front of shocked onlookers.

Police later arrived and hauled the two to the police station. Medics administered first aid on Sepala, who was covered in blood from a head wound.

An enraged Mintra said: 'At first, he asked me 'how much', so I told him 2,000 baht. He asked to touch my genitals to check, so I let him touch me. After a while, I told him to stop. He touched me a second time so I told him no.

‘I told him 'if you touch my p***y, you have to give me money'. He told me he wanted a ladyboy with a p***y before walking away.'

Sepala claimed he only groped the ladyboy 'because he wanted to confirm she was a biological woman'.

He said: 'She told me 'I'm not a ladyboy, I'm a girl' but I was not sure. She took my hand and placed it on her genitals, and then asked money from me. I still did not believe her, so I decided to walk away, but then she hit me on the head with her shoe.'

Both parties were ordered to obtain medical certificates as police probe the incident.

The disturbing incident is the latest issue involving tourists in the bustling coastal city, where round-the-clock sex workers cater to holidaymakers.

Government chiefs have attempted to clean up the city but regular violence and depravity continue to blight its reputation.