PHOTO GALLERY: Robsten Holding Hands!

No wonder Robert Pattinson was looking so giddy in Paris on Tuesday!

R-Pattz and his Twilight co-star/rumored girlfriend, Kristen Stewart, were awfully cozy at Bourget airport in Paris en route to London on Tuesday night.

Like, hand-in-hand close. Arm-in-arm close. Totally, blissfully, Robsten close.

Well, they do say that Paris is the most romantic city in the world.

Can there still be any doubt that these two have more than a professional relationship?

Examine the photographic evidence yourself and share your theories in the comments section!