Sep 2, 2009, 5:00 GMT
Kelly Osbourne will "destroy" her fiance if he ever leaves her.
Kelly Osbourne -Kelly explained: "I said to him quite seriously at the beginning of our relationship, 'I'll f**king come after you if you turn 25 and think, what the f*ck am I doing?' If he pulls that sh*t with me, I'll destroy him.".Albert L. Ortega / PR Photos
The 24-year-old TV star isn't worried about 19-year-old model Luke Worrall changing his mind about getting married because she's told him exactly what will happen if he does.
Kelly explained: "I said to him quite seriously at the beginning of our relationship, 'I'll f**king come after you if you turn 25 and think, what the f*ck am I doing?' If he pulls that sh*t with me, I'll destroy him."
Despite her harsh words, Kelly insists she and Luke are extremely happy together, even though people think they're an odd couple.
She told Heat magazine: "We learn from each other every day. It's a great mix. I can still be silly. I'm not ready to be serious and stop joking around. People look at us and think we're a really odd couple because he's 19 and I'm 24 and he's a supermodel and he dates me.
"I'm not a trophy girl. Girls don't get it. There are all these model girls with some kind of vendetta. But it doesn't make me insecure. Just because you're skinny it doesn't make you pretty."
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