Siavash's ex-girlfriend has vowed never to speak to him again.

Laura Cogoni - who was going out with the Iranian party planner for four months before he entered the 'Big Brother' house - said she will never forgive him for his kiss with fellow housemate Noirin.

Artist Laura - who had previously pledged support for Siavash in the house - said: "He's not the guy I thought he was.

"Even if he crawled to me on his hands and knees in the pouring rain, it wouldn't make any difference. He has disrespected our relationship and it's finished."

Laura also blasted Irish beauty Noirin, who flirted with several housemates before kissing Siavash, only to dump him the next day, saying she fancied housemate Tom.

Less than a week later she was joined in the house by her ex-boyfriend, Issac Stout, who followed her out of the house when she was evicted two days later.

Laura told Britain's New magazine: "She's pretty but she lacks integrity and substance. She's insecure and needs the validation of a man."

"She doesn't care about what she's done and Siavash didn't help things by pretending I didn't exist. He should've thought about the consequences - they're both as bad as each other.

"Noirin has thrown it all back in Siavash's face. He's had his comeuppance - what goes around comes around."

Laura also revealed she fully trusted her ex-boyfriend to be faithful when he joined the show.

She said: "All he said was, 'Don't worry Babes, I know I can trust you and you can trust me 100 per cent.' I never thought he would cheat on me."