Katona, 36, who split from her third husband George Kay last year, doesn't know if the couple will need the legal advice in the future, but if they do split, she will be on hand to help her Atomic Kitten bandmate, reports mirror.co.uk.
Asked what she will get them as a wedding gift, Katona told new! magazine: "The number of a good divorce lawyer. I'm not saying they will need it, but if the time comes, I'm an expert. I should become a lawyer myself, the amount of times I've been in and out of court."
Katona, who has children Molly, 14, Lilly-Sue, 12, Heidi, eight, Max, seven, and 22-month-old Dylan-Jorge from various relationships, says she is currently happy being single but does miss having an adult conversation.
I'm happy on my own. I'm in love with myself at the minute. I'm still learning how to love me, how I should be loved and to respect myself, she said.
Asked if she misses having a male companion, she said: "It's not about a male, I miss a grown-up conversation. There's only so much you can talk to kids about. I FaceTime my mum a lot. She's down at the moment, helping out."
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