CELEBRITY Big Brother lovers Chantelle and Preston are expected to tie the knot today, just months after meeting on the reality television show.

The pair are thought to be exchanging vows at an intimate ceremony in London but details are being kept secret due to a magazine deal worth thousands of pounds.

One newspaper reported that the pair will wed at Dartmouth House in the capital's upmarket Mayfair district at 4pm this afternoon.

A newspaper claims the couple would marry in front of 45 guests, including Preston's fellow band members from The Ordinary Boys.

Chantelle will walk up the aisle in a wedding dress made by designer Elizabeth Emanuel, who famously created the bridal gown for Diana, Princess of Wales.

The Essex model, 23, met 24-year-old Preston during the Channel 4 series in January when she was planted as a "fake celebrity" and told to convince the other housemates that she was a singer.

During the show - which Chantelle went on to win - the couple's chemistry sparked speculation about a possible romance despite Preston's attachment to long-term girlfriend Camille Aznar.

Shortly after the end of Big Brother, the singer split with Camille and within weeks Chantelle had announced that the couple had got engaged.

The blonde Paris Hilton lookalike has since gone on to make a fortune from various publishing and marketing deals.

Preston too has seen a rise in the success of his band, which scored a top 10 hit following the programme with a re-release of Boys Will Be Boys.