Rock offspring Jack Osbourne fears his sister KELLY will get married on the spur of the moment, just like her pal Amy Winehouse. The former reality TV star believes his sister would been keen to rush up the aisle after attending the secret wedding of Winehouse and Blake Fielder-Civil during a trip to Miami, Florida, in May (07). He says, "I think she would. She likes guys who don't have two pennies to rub together though, so I'd ask her to get a pre-nuptial agreement. "If she said she did then I'd think that was cool - and if she didn't then I'd have a word."