She made a name for herself for her fiery rants onseason 3 of Ex On The Beach and mega meltdowns on Celebrity Big Brother.

And after her EXPLOSIVE entrance this series, 23-year-oldMegan McKenna has what we can only describe as the biggest b*tch fight the villa has ever seen!

In fact, her brawl withNaomi Hedman is so heated that security are forced to intervene - holding the two girls back as they SCREAMat one another.

In a sneak-peek at Tuesday night's episode, the gang are playing a game ofHead's Up - classic party game - and Naomi has apost-it note with Jordan's name on her forehead.

She asks: "Are they good-looking?" andwhen the gang say he is, she responds: "Jordan?"

At this point,Megan's face drops and she says: "I didn't realise you found my man good-looking?"

The pair get into a war of words with Megan accusing Naomi of 'giving her sly digs since day one' and 'having attitude with her'.

When Naomi gets in Megan's face, she whacks her hand before Naomi fights back and the pair get into a full-on b*tch fight.

Security arecalled in when punches are thrown andthe pair have to be physically keptaway from one another.

Megan screams at Naomi in what is the best one-liner we think we've EVER heard: "She thinks she's the big girl in here mate, she ain't the big girl in here. I'm the f*cking big girl!"

Naomi hits back: "Shut your f*cking mouth, you f*cking idiot!"

Megan tells her to'f*cking come on then, b*tch!'before Megs has this epic last line:"I'm a better singer than her, I'm better-looking than her and I've been in here half the time than her and I've probably got more friends than her."

Not blowing your own trumpet are you there, love?

'Watch the explosive full episode of Ex On The Beach Tuesday at 10pm - only on MTV!'

- BySophia Moir