Swapping downstairs for upstairs... How hard can it be!?Look up the phrase ordinary girl and you'll see a picture of me, Gemma Goodwin - I only look half-decent after applying the entire contents of my make-up bag, and my dating track-record includes a man who treated me to dinner...at a kebab shop. No joke! The only extraordinary thing about me is that I look EXACTLY like my BFF, Abbey Croxley. Oh, and that for reasons I can't explain, I've agreed to swap identities and pretend be her to star in the TV show about her aristocratic family's country estate, Million Dollar Mansion. So now it's not just my tan I'm faking - it's Kate Middleton style demure hemlines and lady-like manners too. And amongst the hundreds of fusty etiquette rules I'm trying to cram into my head, there are two I really must remember; 1) No-one can ever find out that I'm just Gemma, who'd be more at home in the servants quarters. And 2) There can be absolutely no flirting with Abbey's dishy but buttoned-up cousin, Lord Edward.Aaargh, this is going to be harder than I thought...