The billionaire partner of Michelle Mone has been gifted a unique birthday celebration from the Scottish businesswoman.

Baroness Mone of Mayfair took to Twitter on Tuesday to boast about how celebrations for 52-year-old Doug Barrowman’s will be taking place in the House of Lords in London.

Acoording to her post, the pair are set to have a “lock in” in one of the most important buildings in the UK.

Lady Mone, 45, said: “How do you break the news to ur partner that his Birthday dinner has moved to @UKHouseofLords Country comes 1st & we are having a lock in?”

The lingerie tycvoon, who has over one million followers on the popular social media site, received some witty replies from her followers.

One cheeky fan, @GrainneDaly1981, replied: “Subtley on Twitter I guess.”

Mr Barrowman and Ms Mone revelaed their relationship  were revealed to be an item in December last year.

Barrowman - one of the wealthiest men in Britain - has 50 businesses, his own private jet, six homes, and 15 cars.

Just last week, Lady Mone announced to her Twitter followers that she is to retire in three years’ time.

The Glaswegian made the announcement by posting a picture of herself on the social media site soaking up the sun with the caption: “When I sold my baby Ultimo I was retiring but set up many other businesses.

“I’ve decided to retire from the biz&speaking world in 3 years.”

The businessman gave up control of the Ultimo bra business, which she set up with her ex-husband, in 2015.