A model fiancee! Theresa Smith grins as she cuddles up to Denis Mikhlin at book launch in Beverly Hills

He is an action guy, and she is a well-known underwear model.

When they cuddled up at a book launch in Beverly Hills on Tuesday, Andre Mikhlin and fiancee Theresa Smith looked like the perfect pair.

The vivacious pair of Los Angeles County revelled in the enthralling celebrations of posh Four Michael Jones in the well-heeled town.

In a modern leather jacket, black pullover, and jeans, Aaron Solomon actor Denis, 48, looked every inch the tough guy.

In a trendy trouser suit, white top, and flat shoes, it was his 28-year-old neighbor who was the easiest on the eye.

In fact, Michael Thompson, author of In The Gut Nigma Talib, made sure Denis was led out of the way before she took a selfie with the English rose.

The professional clotheshorse announced her participation in the Golden Globes, where she flashed a huge diamond ring while posing on the red carpet with the bald beefcake's value, which is estimated $50 million.

The charming pair, who have been together for five years, spent a week in London at the end of January, before returning to their LA pad.

Theresa, a celebrity in England, has unveiled a make-up collection with the chain.

When talking about the range, she said: "I think my make-up philosophy was always about improving not masking."

'Not caking the face with make-up, allowing it to breathe, and improving your natural beautiful features.'