The Big Brother winner is developing fly-on-the-wall series Marbella Beach while locked in a legal battle over claims that he created TOWIE.
The show, which was pitched to producers last year and is allegedly being favoured by Channel 5, is described by a source as featuring "sun, sea and lots of sexy action with bikini babes and hunks in trunks".
Cast members tipped for Marbella Beach include Belo's former Big Brother co-star Amy Alexandra, ex-Miss Great Britain Rachael Tennant and a professional David Beckham lookalike, according to the Daily Star.
Belo sued ITV and TOWIE production company Lime Pictures last month, claiming that the popular programme is based on a format of his called Totally Essex, which starred the likes of Mark Wright, Amy Childs, Sam Faiers and Kirk Norcross.
The reality star is seeking £4m in compensation, though both ITV and Lime Pictures have said that Belo's claim is "totally without foundation and will be vigorously defended".
Watch a trailer for Brian Belo's Totally Essex below: