The latest sexy rumour about Robert Pattinson and Kristen Stewart comes from a gossipy "mate", who's told the world that when the couple scamper off to Spain next month for the Cannes Film Festival, Kristen's gonna get in her skimps and rustle up a cheese sarnie.

Or something similar, we imagine.

edward and bella in te waterfall breaking dawn honeymoon

"She’s already gone and bought a ton of new lingerie,” a snitcher told OK.

“She’s going to bring it with her.”

Now, as lovely as this all sounds, Kristen's going to have to carefully plan this meal if she really is set to bake in her briefs - you don't want hot food spashing on yer tenders.

edward and bella on the breaking dawn honeymoon

"Kristen promised Rob she’ll make time for a romantic getaway after he convinced her to add a couple days onto the trip for some quality time together,” the gossip-monger continues.

“There are some really epic nightclubs in Madrid and they’re already planning a big night out.”

Ahh, how sweet. Just Rob, Kristen, and the world's paparazzi following their every move.

PICS: Rob and Kristen at Coachella 2012

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PICS: Robert Pattinson looking hot and dangerous in Cosmopolis

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