This is the amusing moment a cheeky orangutan grabbed a woman's boobs at a zoo in Thailand.

The primate stood behind the tourist for a selfie but the pretty tourist was surprised when the creature cupped her breasts in Bangkok's Safari World on June 27.

He also planted a kiss on the woman's cheek after flashing a wide smile to amused tourists.

Dararat Suwanmai, 24, said: ‘I burst out laughing when I realised what the woman was doing. He was such a friendly creature.'

The orangutan then walked back to his caretaker to be ready for the next tourist to take selfies with. It was unclear, however, if the animal was trained to do that to entertain zoo visitors.

Orangutans are among the smartest primates. They can use a variety of tools and construct sleeping nests from branches and leaves.