A touchy-feely orangutan kissed a tourist while cupping her breasts.

Footage shows the primate wearing boxer shorts as he sat on a bench with South Korean holidaymaker Boeun Lee in Bangkok, Thailand on March 19.

The cheeky monkey pouted its lips, touching the woman's cheek before extending its arms onto her chest. It sat behind the woman as they posed for pictures together in the zoo attraction.

Boeun said: ‘The orangutan was really smart to learn how to do all of that. It was hilarious.'

The orangutan has become a hit at the Safari World in the Thai capital, with female tourists queuing up to willingly let the monkey perform its party trick and fondle heir assets.

However, questions have been raised about the use of the ape to perform its hallmark stunt.