Kelly Osbourne has become engaged to her 18-year-old boyfriend Luke Worrall just after six months of dating. He certainly is a fast mover.

According to a Sunday newspaper, Luke yesterday changed his online relationship status to 'engaged to Kelly Osbourne'.

His profile page has been inundated with congratulatory messages from friends and family, according to The People newspaper.

Relative Nicola Worrall wrote: 'I'm pleased for you both xx', while former babysitter Claire Merchant added: 'Wow, you've come a long way from the little boy I used to love babysitting for'.