Twin brothers Donald and Douglas, born last month, will be donated to the Dumfries and Galloway Personality Disorder Support charity (DGPDS) later this year to help with pet therapy.
Emily Duncan, 38, who runs Whitehall Farm in Dumfries with her husband Henry, 40, said the pair are being rehomed because of their imperfect markings.
The mum-of-two said: “Donald and Douglas don’t have good enough markings to make good rams. They will however make excellent friends.
“I didn’t really know what to do with them when they were born, because technically their markings mean they’re not perfect for breeding.
“But then I got chatting to a lady who runs a charity for people with personality disorder that use animals as pet therapy.
“Donald and Douglas are going to live with her to do a good job. She was so excited when I rang her to ask if she wanted the two lambs.
“I’m really pleased that they are going there and they’re going to be so loved.”
The pet therapy helpers were named by Emily’s three-year-old son Bertie – after Thomas the Tank Engine characters.
Louise Grainger, manager at DGPDS said the lambs, due to arrive with the charity in August, will help service users with trust issues.
She said: “We cover the whole of Dumfries and Galloway supporting carers, family and friends that have loved ones with personality disorder and also people who struggle with personality disorders.
“We find what the individual needs are and help the individual meet them.
“Douglas and Donald will help people interact and allow them to start to build trust.”
The Duncan family have welcomed 23 Valais Blacknose lambs this year – dubbed the “cutest sheep in the world” – with one lamb still on the way.
Emily, who imported the cute sheep to her Dumfries farm in December 2014, said social media has “gone crazy” for her newest arrivals.
She said one picture showing a lamb called Daniel slipping on the path outside their farm, captioned ‘Splat’, has reached almost half a million people worldwide.
Daniel, named by daughter Evie, aged 6, after a school friend is caught mid-fall on the way to his new field.
Emily said: “The children were sending them down and I was just standing here click, click, clicking on my camera.
“I think he slipped on the mud on the path.
“My Facebook page has just been going crazy for the photo, they were popular last year but I have been getting notifications non-stop this year.”
The rare fluffy lambs include Davos, Denzel, Dandellion, Daffodil, Doris and Deano. This year, the Duncan family named most of the girls after Spring flowers and the boys names are associated with their motherland, Switzerland.
Last year Emily’s Whitehall lamb, Claude, shot to fame after he broke his leg when his mum stood on him just after he was born on Friday the 13th.
The rare Valais Blacknose was being nursed back to health by little Evie and Bertie but had to be put down last year.