Louise Thompson "couldn't bear it" if her brother Sam Thompson started dating someone other than Tiffany Watson.

The 'Made in Chelsea' star was devastated when she found out the couple, who have been dating for four years, had decided to go on a break for the summer and has admitted she'll be really upset if he started romancing someone else.

Speaking exclusively to BANG Showbiz, Louise said: "It was pretty hard when she and Sam split purely because me and her are really good friends and I couldn't bear for my brother to be with anyone else. But that's very selfish of me."

With that in mind, Louise, 27, is no doubt furious that Sam has started growing close to Amelia Lily in the 'Celebrity Big Brother' house and distastefully branded Tiffany "baggage."

But, although Tiffany has been hurt by the remarks, Louise thinks Sam, 25, has some growing up to do.

She explained: "They're both lovely people and they're both really happy so I think maybe they've each other too young. They're too young to get married or to move in together so I think they just need a little bit of time apart.

"My brother - obviously we live together - he can be a bit of a juvenile at times. He needs to grow up a bit and be a bit more independent and then hopefully they can rekindle things."