Changing Rooms fans left blushing as Anna Richardson pulls down trousers and flashes bare bum to show off tattoo

CHANGING ROOMS viewers couldn't believe what they were seeing when Anna Richardson dropped her trousers.

Anna, 50, is best known as the host of  and was clearly so inspired by her work on that show, she decided to bare her bum.

The decorating series, which launched on Channel 4 last night, sees homeowners renovate each other's properties - often with very mixed results.

Each week, the show follows two different homeowners as they remodel each other's houses - and they can do anything they feel like, taking complete creative control over the renovation.

The first episode saw the crew head to Swansea where they attempt to bring some new life to Lisa's beige bedroom, whilst she takes charge of neighbour Claire's house.

DIY guru Laurence Llewellyn-Bowen was given the job of overhauling Claire's bedroom and decided to go with the theme of 'Forever Peacocky'.

"So, Laurence just sketched out his scheme on my back last night," she joked.

"So I'll just show you this without [saying anything]."

She then pulled down her jeans to show off a huge tattoo of a peacock feather on her lower back.

Laurence joked: "It's the first time I've taken inspiration from a tramp stamp."

"What I love is the fact that it's a classy tramp stamp."

Anna then revealed her tattoo inspiration:  "But genuinely, I love peacocks so when you said about your peacock-y theme, my heart sang, 'this is going to be amazing'."

Changing Rooms viewers reacted with shock and humour to Anna's surprise reveal.

"Nice bum, Anna," wrote one fan on Twitter.

And another added: "Can’t wait for the inevitable #ChangingRooms and Naked Attraction Channel 4 mash-up."

While a third wrote: "Probably did take inspiration from her tattoo...coz that was [tacky] as well."

Anna seems to have had the tattoo for almost 10 years, debuting it on Twitter in 2012.

Changing Rooms is on Wednesdays at 8pm on Channel 4 and All 4.