Big Brother had a problem on its hands this week – how on Earth do you top something as hilariously divisive as Big Brother's Fake Week – and decided that the answer, somehow, was Big Brother's Birthday Party.

This week the Big Brother housemates all have to have a party for Big Brother, with five of the housemates acting as Big Brother's party guests and the other six being the party entertainers and dressing up as clowns and plate-spinners and whatnot. But here's the catch – Big Brother's birthday party is going to last for days, and the party can't stop if the housemates want a decent-sized shopping budget. While it's good to see a Big Brother party that doesn't look like it'll end with Charley crying and throwing up, it is an endurance task – so expect the whole thing to be ditched in about ten minutes if the housemates' previous form is anything to go by.

Nicky and Gerry are up for eviction this week, but who's going to win Big Brother? Here's the second part of this week's Big Brother betting odds to win – for Carole, Sam, Chanelle and Gerry – with help from Paddy Power…

Carole – Did you see Carole's face on Friday's Big Brother when Charley said what a nice person she was? It was ridiculous – Carole started blubbing like a lunatic because an idiot told the nation that she was basically the Big Brother house slave, and Charley seemed to forget that – far from being a saint – Carole is the miserable presence within the Big Brother house who divides her time neatly between fuming about Charley talking too much when she wants to sleep and fuming about everyone moving her towel around and stuff. And now Carole is suddenly Mother Teresa because she cleans up from time to time? Fair enough – compared to Charley we're fairly sure that Fred West would qualify as a saint – but Carole's hopes of winning Big Brother aren't going to get any better just because she's got Charley's backing. Current Big Brother betting odds – 16/1

Sam – The reason, we've decided, why Sam is the least popular of the Big Brother twins is because she possibly has a boyfriend on the outside. Now usually when a housemate has a boyfriend on the outside you can guarantee that he'll turn up in Heat magazine a month into the show honking "She towled mi I woz ver spessawl one!" but since Sam seems to be thoroughly dedicated to her boyfriend, it means she can't sample the delights of the Big Brother treasure chest, like Brian or Gerry. And this also means that Sam is such a boring nonentity that the majority of of us forget she's even there most of the time. Current Big Brother betting odds – 16/1

Chanelle – Wait, what? Chanelle is in the top half of the Big Brother betting odds. We don't understand – isn't anyone actually watching? As much as we dislike Ziggy, and by moses do we ever dislike Ziggy, we are able to find a solitary shred of sympathy for him – and that's all down to Chanelle. Ever since Ziggy and Chanelle ended what's been called 'the rubbishest Big Brother romance ever', Chanelle has morphed from a blandly pretty Posh Spice wannabe into a certifiable bunny boiler of the very worst kind. Poor Ziggy hasn't even been able to open his mouth without Chanelle shrieking abuse at him for it and, in any free time from this that she gets, Chanelle glares at Charley so hard that we actually think her skull might crack open. And still Chanelle is in the upper echelons of the Big Brother betting odds? What's she going to have to do to change this? Literally boil an actual bunny? Current Big Brother betting odds – 12/1

Gerry – What would Big Brother be without the slightly older foreign homosexual who isn't quite as clever as he thinks he is, eh? Just like Richard last year, Gerry is sort of slightly bubbling under the really popular Big Brother housemates at the same time as floating clear of the really unpopular Big Brother housemates, leaving him in the sort of limbo that only really suits gays with abnormally close ties to their toy monkeys and illegally awful haircuts. Thing is, though, how dull is Gerry? At the risk of sounding like Brian, all Gerry does is talk about art and history all the time – unless someone inadvertently slags off Kylie Minogue, at which point Gerry becomes a snarling, Kylie-protecting warrior. Perhaps that's what's needed to snap Gerry out of his current malaise – breast cancer jokes. Current Big Brother betting odds – 8/1

Tomorrow – the Big Brother betting odds for Amanda, Liam and Brian. But if that's too long to wait – or you feel like making more money than you know what to do with – head right over to the Paddy Power Big Brother betting odds page to see the latest, and best, betting odds… and get a free £10 bet as well!