The Old Bushmills Distillery in County Antrim, Northern Ireland was visited by Prince Charles the Prince of Wales and his wife Camilla the Duchess of Cornwall.
The little village of Bushmills and the surrounding area was first granted a licence to distill whiskey by King James I in 1608.
The Royal couple met many of the 120 staff who help to produce 500,000 cases of Old Bushmills, every year.
Charles and Camilla said the tour was very nice but wanted to cut to the tasting.
The distillery's master blender, Helen Mulholland said: " After a few drinks the pair were all over each other like horny teenagers I didn't know where to look."
The couple walked hand in hand giggling to the visitors centre where they unveilled a plaque commemorating their visit but were very eager to leave as soon as they were presented with a personalised bottle of 12-year-old single malt whiskey and a 1608 anniversary bottle of Crystal Whiskey.
The prince was heard to say: "If the Limo is rocking don't come a knocking."