Slovenia-based Lisca lingerie's Smart Memory Bra alters its shape when the wearer's body temperature changes, pushing breasts closer together when a woman gets flushed after seeing someone attractive.

Designer Suzana Gorisek said: "As a woman's body changes, so the size of the bra changes. That's the advantage of this bra."

As soon as the wearer's temperature decreases the bra deflates.

The underwear was invented when designers began working on a bra which would change shape depending on the weather, to ensure women always had perfectly-fitting lingerie.

The cups boast expanding foam which is heat-sensitive.