The moment two monkeys hopped onto a woman's lap and began having sex was caught on video.

The tourist was in the Sangeh Monkey Forest in Bali, Indonesia, when two monkeys hopped onto her knee and before she knew what was going on, they were humping away, leaving the woman red-faced.

A female long-tailed macaque had climbed onto the holiday maker’s knee first, and her friends, who thought it was cute, pulled out their cameras to film the moment.

Then, suddenly, a male monkey joined her and shamelessly made his move.

Woman embarrassed as two monkeys climb on her lap and begin having sex (video)

Thankfully, a tour guide came to the shocked tourist's rescue and threw some food at the monkeys, which distracted the male and caused him to leap off.

Watch the insanely hilarious video below.