Joe Jonas might have a thing for older women … 27 years older

Demi Moore has reportedly struck up a “friendship” with Joe Jonas.  But is it MORE than just a friendship?

They met through mutual friends at the Cannes Film Festival, where Demi was hyping her new horror movie “Substance”.  They’re said to be “flirty”, but at least one source claims they’re not actually physically involved.  Yet.

Demi is 61 and possibly the hottest grandma in Hollywood.

Joe is 34, and he just got out of a five-month relationship with a model named Stormi Bree.  In September, he separated from his wife of three years, Sophie Turner.  That split’s been pretty ugly.

(Pictures from Cannes here.)

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