Glamour model and fiancé Billy Zane shocked by uninhibited display

Kelly Brook didn’t know where to look on Saturday when she stumbled upon a fellow holidaymaker naked on the beach.

The glamour model, 28, is on a romantic break on the Caribbean island of St Barts with fiancé Billy Zane, 41.

The pair were taking a stroll along the shore when they were snapped with the mystery man who had decided to let it all hang out.

Kelly – whose own 32E assets were securely enclosed in a black bikini after a spot of topless sunbathing – couldn’t resist taking a quick peek,

Ice-cool Billy kept looking straight ahead but he and Kel did share a cheeky grin.

Kelly Brook sunbathes topless on holiday>>

SEE PICS of Kelly Brook posing topless in the Caribbean>>

Kelly Brook gets over Strictly heartache on holiday>>

Kelly Brook quits Strictly Come Dancing>>

SEE PICS Kate Moss sunbathes topless with mystery man>>

SHOCK! Heather Mills in full frontal pose>>