Now that’s a royal enclosure, Kirsty!

HOW much cleavage is too much cleavage? Asking for a friend! Kirsty Gallacher took the plunge at Ascot this week, in a revealing outfit (above) that caused much comment.

The 42-year-old former Sky Sports presenter was ravishing in her polka dots, even if a croupier on the late shift at the Boom Boom Casino might have thought twice about that dress.

Of course, some say that Royal Ascot — Royal Tatscot! — has become coarse and déclassé now that it has been infiltrated by lower orders such as television stars and people who have been on — shudder — Strictly Come Dancing.

Yet the horse-racing has always been where the posh and the louche enjoy a day out together, albeit separated by velvet ropes, enclosures and rules.

I doubt that Kirsty would have been allowed in the Royal Enclosure, where a strict dress code of medieval female modesty prevails, including a rule that ladies’ dresses and tops should have straps of at least one inch wide.

Anyway, I thought she looked lovely. Absolutely amazing set of quills. On the hat.