Gigi Hadid, 31, and Bradley Cooper, 51, coordinate their looks as they hide their ring fingers after sparking 'secret' marriage rumours with wedding bands

Gigi Hadid and Bradley Cooper headed out in Paris on Thursday, sporting matching outfits amid rumours they have secretly married.

The couple have been spotted wearing what look like wedding bands this week, but for their latest outing they kept their ring fingers hidden.

Bradley was spotted juggling several parcels as he hopped out of his car, wearing an 'Enjoy it Brody' t-shirt in tribute to his late friend and collaborator Brody Stevens.

Gigi meanwhile was wearing her own red tee, teamed with tracksuit trousers, as she happily chatted to a friend on the street.

The smiling couple looked in great spirits as speculation about their romance heats up this week. 

Gigi and Bradley , who have never walked a red carpet together, ignited a storm of marriage rumours on Monday when they first debuted their wedding bands.

Gigi has been seen wearing the same ring in another sighting this week. Page Six Style claimed the model opted for a $6,450 'Quatre Radiant Edition Wedding Band' made by the French luxury jewelry brand Boucheron.

On the website, the 33-diamond-laden yellow gold grosgrain ring is described as being 'worn as a declaration of love, but also of style.'

And Bradley reportedly chose the $2,120 Boucheron 'Godron Pink Gold Wedding Band' and the double-band design evidently evokes 'the strength of the love that binds two people together.'

The Daily Mail has reached out to the couple's representatives for comment.

On Thursday, a source claimed to Us Weekly that the couple 'have had the rings for a few months now' but they are just commitment rings as 'neither of them wants to get married or have a traditional wedding.'

'Things are going really well,' the insider alleged.

'They are inseparable when they aren't working. Their lives are fully integrated at this point and their daughters get along well and have play dates. They've essentially become one happy little family in their own way.'

Bradley is reportedly in Paris to write, direct and star as Danny Ocean's (George Clooney) father opposite Margot Robbie in Warner Bros. Pictures' 1962 Monaco-set, Ocean's 11 prequel already scheduled for release on June 25, 2027.