Ashton Kutcher and Demi Moore are one of the few celebrity couples that can make a nun and priest outfit look sexy!

The pair showed that they are game for a laugh yeterday by posting a picture of them posing in Holy costumes on Ashton's Twitter page.

The photo, entitled "Just a regular Monday with the Kutchers," was a hit with fans getting over 33,000 hits in a day and scores of comments.

But we doubt it's a vow of chastity.

And this isn't the first time the pair have got into the fancy dress mood.

On Halloween Ashton and Demi dressed up as a pair of nipples.