While people may be extra cautious about what they wear on a date, a British survey has found slim women wear the least sexiest underwear for such an occasion.

Women size eight and below are most likely to wear sensible cotton pants. But size 16s make the most of their feminine figures by opting for sexier matching sets in lace and silk, the Sun reported.

Size ten to 12 women are also unadventurous, but size 14 women are most likely to wear a suspender belt, it added.

Over half of the women will select special underwear for a Valentine's date, and a third will buy new undies.

Toni-Ann Linsday, from fashion clothing line TU at Sainsbury's, who carried out the research, said: "This survey really highlights that women are embracing their curves and feeling confident about their figures."

"You might expect classic model-sized ladies to be more confident and adventurous."

"However, it seems that the curvier ladies are more likely to choose sexier and chic underwear this Valentine's Day."