Are they or aren't they?

For the past couple of days the tabloid industry has been all a twitter (sorry, couldn't help myself) over photographs taken of Lily Cole and Twitter founder, Jack Dorsey, getting cosy on a yacht in St Barts. The images of the British model with the 36-year-old enjoying each other's company as they celebrated the new year have prompted many to wonder whether they are, in fact, an item.

But the 25-year-old model wasn't the only famous face to be seen on the luxury yacht. The pair were also joined by Hollywood tycoon Brian Grazer and music producer Rick Rubin aboard the 12 person vessel which is costing Dorsey a cool $240,000! However this seems to pale in comparison to the Twitter founder's worth which is estimated to be $1.1 billion.

Dorsey co-founded Twitter in 2006 where he remained until 2008 as CEO. In 2011 he returned to company as executive chairman despite Twitter making a massive net loss of $25.8 million in the first quarter. These days Dorsey makes his money from Square Inc, a mobile payment service valued at $3.2 billion.

Cole has been single since splitting up with her long-term boyfriend Enrique Murciano. In 2011 she was rumoured to be dating fellow model, David Gandy, but those whispers turned out to be false.