In view of her 216,000 Twitter followers, she wrote: “I just heard my lover say to a waiter, ‘sorry my wife is being naughty’.
“Because I was laughing loudly & instead of feeling ashamed I felt very proud. To be naughty AND his wife!”
Tamzin and Tom are yet to the the knot, but she previously said she would be open to the idea, despite her last marriage not ending “perfectly”.
Earlier this week, the mother-of-two shared a selfie of the pair as she wished her fans a happy new year.
She wrote: “Happy new year from us to all. May 2020 bring us all the peace we so need. Loads of love.”