Well this is awkward. They've all already dated, or met, or slagged each other off. We've dug deep into the histories of this year's Celebrity Big Brother housemates and discovered a complicated web of bitchery, shade and… probably fluids.

1. Bianca Gascoigne and Calum Best

Bianca dated Calum during their appearance on the second series of Love Island, and even won the show!

During the 2006 series, Bianca said: "Now that I've met Calum he's totally, totally up to my expectations of him.

"He's a lovely bloke, he's very charming, he's a gentleman. I can't help but feel that being here with my dream man in here is perfect."

Before going on Love Island, she also told the Daily Star: "Calum Best has been my heart-throb for a long time and he is extremely sexy."

Despite being all over each other on the show, their relationship didn't last too long when they were back in the real world.

But maybe they're both at a better place in their lives to get back together during their time on the show, right?

2. Bianca Gascoigne and Angie Best

Angie is Calum's mum, therefore she is Bianca's ex-sort-of-mother-in-law. But did they ever meet? Well, seeing as Bianca and Calum split pretty much as soon as they returned home from Fiji, probably not. But let's just imagine for a minute that Bianca and Calum fall back in love and end up getting married... will Bianca start calling Angie 'Mum'?

3. Calum Best and Angie Best

Angie is Calum's mum, so yeah, they're aware of each other's existence.

Things could get realllllllll awkward if Calum ends up hooking up with his ex, Bianca in the hot tub. No-one wants their mum knowing what they get up to in the bedroom/hot tub. Or worse than that... what if Angie hooks up with Ray J?

4. Bianca Gascoigne and Brandon Block

Was anyone else surprised when Brandon and Bianca seemed to be old pals when he entered the CBB house? He shouted, "Alright, girl!?". And she said, "Come 'ere, you."

We've done some rummaging on the internet, and the only thing we can come up with is the fact that he's a superstar DJ, and during her 2012 X Factor audition, Bianca claimed to be a DJ. So maybe they spun a record or two together at some point?

5. Ray J and Stacy Francis

You can read the whole tale here, but short version: Ray and Stacy dated.

So you know how in Stacy's VT before entering the house she talked about having a row with Whitney Houston two days before she passed away? Well, it turns out the row in question was to do with Ray. Stacy and Ray were apparently seeing each other at the time of the argument, and they were out at a club, which Whitney was also at. Apparently Ray was also dating Whitney at the same time, and after seeing Stacy chatting, Whitney came over to the pair and started yelling at Stacy.

Whitney then pushed Stacy in the forehead, according to reports. Stacy shoved her back before the pair were separated by onlookers.

Tragically, Whitney was found dead two days after the argument.

And on Wednesday's episode, Stacy claimed that Ray never stood up for her during all this love triangle business.

Speaking to her fellow housemates, she said: "Ray J threw me under the bus. When people in America tried to make me out to be something I wasn't, he never stood up for me. I want to know why he never said anything.

"He never said this is a friend of my family. I've known Ray and his family over 15 years; he never came to bat for me. I wish he had the heart to say, 'She wasn't stalking Whitney in the club, she's a friend'. It was a hard time, I lost everything."

6. Austin Armacost and Heidi and Spencer Pratt

Austin made it perfectly clear that he's not crazy about Speidi in his VT before entering the show. He said of The Hills stars, "I don't know about 30 days with them in there, I couldn't spend 30 minutes [with them]," before being awkwardly reunited with the couple minutes later.

He then reiterated the point in the Diary Room by saying, "I'm going to give Heidi and Spencer an opportunity to prove to me that they are decent people.

"I already think Spencer is a complete dickhead! I know what to expect from Speidi."

And during the show, Spencer's sister Stephanie Pratt threw shade at Austin for bad-mouthing the pair.

One CBB fan tweeted Stephanie saying: "@stephaniepratt Austin seems to be ignoring Speidi. He needs to leave." She replied: "Who?"

This content is imported from Twitter. You may be able to find the same content in another format, or you may be able to find more information, at their web site. Who? https://t.co/RcNd0DJgiI — Stephanie Pratt (@stephaniepratt) January 3, 2017

Classic shade there.

7. Austin Armacost and James Jordan

James tweeted something hella shady about Austin when he was in CBB the first time around. He sassily said that Austin deserved an Oscar for his performance.

This content is imported from Twitter. You may be able to find the same content in another format, or you may be able to find more information, at their web site. WOW @bbuk was great tonight.

Austin should get an Oscar for his performance



I still want James to win#CBB — James Jordan (@The_JamesJordan) September 21, 2015

8. Nicola McLean and Jamie O'Hara

Nicola and Jamie will probably have plenty to talk about as Jamie used to be married to Danielle Lloyd. And Nicola used to be one of Danielle's gal pals, until they fell out and Danielle's brother Matty started being pretty nasty to her on Twitter.

Nicola tweeted about being a little unhappy that Danielle named her new dog Rocky, which is also her son's name. So Matty had a go at her via social media, calling her a "fat c**t". Now that's not very nice, is it?

9. Nicola McLean and Jasmine Waltz

Nicola and Jasmine have something/someone in common. When Jasmine was last in the CBB house she had to fight Casey Batchelor for Lee Ryan's attention. It was quite the love triangle.

And to prove she's still not ready to bury the hatchet, Casey appeared on Big Brother's Bit on the Side after Wednesday's episode of CBB and said about Jasmine, "You can't polish a turd."

Casey added that history could be repeating itself by predicting a love triangle between Calum, Bianca, and Jasmine.

"Obviously Bianca and Calum have history. And Jasmine is clearly gunning for Calum! She's saying we could have a circle, she's talking about this kind of circle," she quipped as she made an explicit gesture with her fingers.

Like Jasmine, Nicola's not crazy about Casey either. She blasted her on Twitter back in March when she had a dig at the glamour model for dating Union J's JJ Hamblett when he was on a break from his long-term girlfriend Caterina Lopez. She also said Casey was "more of a man than Caitlyn Jenner".

10. Nicola McLean and potential housemate Jonathan Cheban

Seeing as Jonathan is Kim Kardashian's BFF, he probably won't be crazy about Nicola being so rude about Kim's stepmum Caitlyn.

11. Ray J and potential housemate Jonathan Cheban

And of course Jonathan has real beef with Ray J, who is not only Kim's ex but also the guy in her infamous sex tape.

You remember... the saucy video which got 'leaked' back in 2003. It featured a LOT of very naughty things going on between Kim and her then-boyfriend Ray.

The couple were together on-and-off between 2003 and 2007, but things got messy when they called time on their relationship, and the tape "mysteriously" got leaked.

And worryingly for Kim, he said on Wednesday's episode: "I'm being asked about the sex tape, am I married..? I'm ready to tell everybody everything! I'm cool, I'm very respectable."

Jonathan ain't gonna like him revealing all, and an insider told MailOnline: "This is set to be explosive. Jonathan is fiercely protective of Kim so for the first time one of her nearest and dearest is going face to face with Ray J. It's all going to kick off!

"Ray J has no idea that Jonathan might be coming into CBB and this will totally unsettle the house.

"This will be the first time Jonathan and Ray J will have met although Jonathan has been vocal in the past about Ray J."

BONUS! Nicola McLean and ex-CBB host Brian Dowling

Nicola had a right old dig at former CBB host Brian Dowling when she was having a chat with current host Emma Willis before she entered the house.

Nicola told Emma: "I'm here because you're here.

"Brian Dowling was so crap and horrible to me during my exit interview but I know you'll be amazing."

Don't forget to vote for your favourite TV shows in this year's National Television Awards! Shortlist voting closes at 12 midday on Wednesday, January 25.

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