Ex On The Beach star Megan was invited as Pete Wicks' date to James 'Arg' Argent and Lydia Bright's 1920s themed Great Gatsby party.
As she met up with Pete in the foyer, Megan talked about her best friends Chloe Meadows and Courtney Green, admitting: "I'm not going to lie I'm really nervous. Chloe and Courtney are my best friends so obviously I'm going to have their backs".
Admitting that she is also "close with Danielle" Armstrong, Megan continued: "It's not fair on Courtney. There's only two of them it's against like six of them. Now there's three."
Walking into the room on Pete's arm, Megan sat at the far end of the table opposite Chloe and Courtney.
During her scenes, Megan talked about her blossoming romance with Pete and attempted to sort out the drama between Courtney and Danielle once and for all.
But watching her, it was as if Megan had been a cast member for years - talk about being a complete natural!
Following her guest appearance on TOWIE, should Megan McKenna be a permanent cast member?— Reveal Magazine (@RevealMag) March 14, 2016
Check out some fan reactions below:
Loving that funny and fiery @Megan_Mckenna_ is on TOWIE! What a twist!— Becky Brooks (@BeckyBrooksSing) March 13, 2016
@Megan_Mckenna_ get this chick on towie permanent! Just what the show needs— Jodie Watts (@jodzjay) March 14, 2016
@Megan_Mckenna_ on TOWIE is the best thing ever!— Emma Bradley (@Bradley_xo) March 13, 2016
loved @Megan_Mckenna_ on towie last night, I would love it if she became a regular— nancy (@NancyKnight11) March 14, 2016
How Hot was @Megan_Mckenna_ in tonight's towie— Rebecca McDonnell (@RebeccaMcDonne7) March 14, 2016
Hope Megan stays on #Towie— Breezy!!! (@Breezy996) March 14, 2016
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10 reasons why we want to be in TOWIE: