Despite recent rumours their marriage was on the rocks, Beckinsale insists they are as happy as ever.
Beckinsale explains, "There's a made-up story where I'm supposed to have gone rushing off to England for a secret tryst with a male friend.
"Well it's actually my friend's husband and they've just had a baby. Supposedly I took advantage of the swollen ankles and moved in for the kill.
"We have a good giggle about that one. I keep sending my friend emails saying, 'But your husband is a fantastic shag, isn't he?'"