Michelle Mone has left her Twitter followers guessing if she has just got engaged to her Scots billionaire boyfriend.

The former bra tycoon tweeted a cryptic post that simply said: "We are off to celebrate."

Her tweet sparked rumours among her fans on social media that she might have been proposed to.

The 45-year-old then posted a picture of herself and her partner Doug Barrowman looking very glam as they appeared to head out on the town together.

She tweeted: "Thanks so much to @juicemaster I've lost 9lb's!! Dropped a dress size & feel incredible. Picture from our home last night."

Barrowman and Mone were revealed to be an item in December last year.

He has 50 businesses, his own private jet, six homes, and 15 cars.

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