The actor, 19, who will play a recast of Little Mo s son Freddie in scenes airing this autumn, was seen larking around with young Ellie, who is set to play a new incarnation of Amy Mitchell.
It was recently announced that Bobby - who is the son of Jade Goody and Jeff Brazier - would be playing the son of Little Mo Slater, who was last seen in Walford in 2006.
The Big Brother star, who died in 2009 aged 27, made no secret of her love for the show and in 2006 petitioned two of its stars to talk to their bosses about securing her a role.
The 19-year-old is set to appear in the hit soap this autumn playing Freddie Slater, the son of Little Mo Slater, who was last seen in Walford in 2006.