The King and Queen stroked alpacas and Camilla laughed off a goat nibbling her dress on a visit to see highlights from an agricultural show.
Charles and Camilla travelled to Theatr Brycheiniog in Brecon on Thursday during an away day to Wales.
The Queen, wearing a shirt dress made with Liberty Green Peacock Manor Silk, was heard remarking that the animal had taken a liking to her outfit and given it a nibble, as she chuckled about the encounter.
The King and Queen also met a pair of alpacas called Caleb and Reg, with Camilla pictured giving Caleb a stroke.
The royal pair planted an oak sapling, which will eventually be resettled in the Brecon County Showground.
The King held the spade aloft and Camilla using a watering can to douse the young tree.
They were shown elements of Brecknock Agricultural Society’s annual show, of which Charles was patron as Prince of Wales, as they toured a field next to the Theatr, meeting local livestock owners and food and drink producers.
The Aberhonddu Male Voice Choir provided the musical backdrop.
At a reception in the theatre later, the King and Queen met Welsh coronation champions, members of the Brecon Mountain Rescue Team, representatives from the Brecon Women’s festival and local health service, as Welsh jazz musicians the Swing Strings Trio entertained the guests.