A new bra boosts women's cleavage when they are aroused.

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.

A company representative explained: "It's healthier than an ordinary bra because it will always provide the perfect fit."

The piece has already been shown at a large lingerie exhibition in Paris, and is expected to cost around £25 when it goes on sale.

The spokesman added: "We are still looking into distributors in all major European countries but we have had a lot of interest so far."

Lisca is the biggest lingerie firm in eastern Europe.

Earlier this week, underwear firm Triumph International showed off their new bra offering, which boasted a ticking clock on the front.

The bra is designed for women who are looking for a husband, and the only way to stop the clock counting down is to slip an engagement ring into the mechanism.

When the jewellery is put in place, the clock halts and Felix Mendelssohn's 'The Wedding March' begins to play.

The bra is yet to go on sale.