Insect pashing and other WTF moments from Heartbreak Island

Shayna competing in the eating challenge on Heartbreak Island episode 4.

As we know by now, Heartbreak Island is certainly not for the faint-hearted.

The latest episode was an interesting look into what should come first in a relationship: love, power or a strong stomach.

Gennedy was the only girl who chose to eat the live grub.

Here are a few of the episode's most shocking moments ...

The disgusting food challenge

Harry and Georgia.

It goes from a reality TV dating show to Fear Factor really quickly in this episode.

The challenge included couples balancing on wooden logs while transferring gross food via their mouths for their partners to eat without falling.

An alive and squirming witchetty grub.

The whole thing was disturbing for viewers and competitors alike.

Highlights included Gennedy being the only girl to eat the live witchetty grub. Good on you girl!

The Disrupters cause a scene

Two new singles arrive in Fiji ready to cause a stir.

The Disrupters, Lincoln and Natasha.

True to their name, the arrival of the "disruptors" left a lasting mark on the game when relationships, loyalty and sincerity were put to the test.

The pair are Natasha Pezic, 23, a lifestyle blogger from Auckland, and former bodybuilding champion Lincoln Marshall, 22, from Marlborough.

On her first night on the island Natasha kisses a number of the boys and ranks Kristian as the "best" out of all of them in front of his current partner Ruby.

She is obviously distraught and later asks him what he meant by it.

He then refuses to apologise and acts like it was a "strategy" to "play the game".

Playback gets tense

After the disgusting food challenge, Georgia and Harry were in a tight spot after being put up for elimination.

Hosts Matilda and Mark asked the players for the Playback option where you can swap your partner to save one of the bottom two, and eliminate your current partner.

Ruby decided to play the Playback option to keep Harry in the game and say sayonara to Kristian.

Ruby has had enough of Kristian's strategy games.

Josh also used the Playback option to save Georgia, throwing his current partner Tiffany under the bus.

There were lots of tears.

Kristian cried after being eliminated from Heartbreak Island.

Ruby's Weetbix face

Ruby and Kristian didn't do well in the food challenge and it may have been because Ruby found the dry Weetbix hard to swallow.

That does not look satisfying, someone get that girl some milk!

Ruby found the dry Weetbix hard to swallow.

Listen to our Heartbreakers podcast here, by Brodie Kane, Gracie Taylor and Caitlin Marett.

Heartbreak Island airs Monday-Wednesday, 7.30pm on TVNZ 2. For extra sizzle, don't miss Heartbreak Island UNCUT airing Friday nights, 9.30pm on TVNZ 2 and Sundays 8.30pm on DUKE.