Former Packed To The Rafters co-stars and real life couple Jessica Marais and James Stewart have signed up to work together again on a new stage show.

The couple met while playing onscreen lovers in the hit Australian Tv drama, and they subsequently became engaged and welcomed a daughter last year (12).

Marais and Stewart will now be working together again after signing up to star in a new production of Australian play Cosi in Brisbane.

David Berthold, artistic director of La Boite Theatre Company, says of the signing, "I had been speaking to Jess and James about the two of them working together for a show here. It'll be their first time onstage together, so that's certainly one excitement for them."

The play will open at Brisbane's Roundhouse Theatre in February (14).