Kerry Katona has cringed over her "awkward" reunion with ex-husband Brian McFadden after making a sex joke about him.Earlier this month, the former popstar couple were seen together for the first time in years as they jointly attended their daughter Molly's 21st birthday celebrations in Ireland.Speaking ahead of the event, Kerry revealed she was nervous to reunite with the former Westlife star.READ MORE:Kerry Katona and ex Brian McFadden seen together for first time in years after splitIt came after Kerry made a raunchy joke about their prior sex life on a podcast just weeks before the party.Kerry told OK!: "I appeared on a podcast with YouTuber Shaun Attwood and some of my quotes made the headlines last week. "I made a joke that my ex Brian McFadden proposed after three weeks because I'm so good in bed.