Niall Horan and Demi Lovato might be about to finally meet face to face at this week's VMAs in LA, but it sounds like our leprachaun friend won't necessarily be getting a greeting snog as it's rumoured that she's back dating ex-boyfriend Wilmer Valderrama.

Having dated off and on in the past, it sounds like Demi and 32-year old Wilmer might be rekindling their romance after they were spotted on a dinner date at The Cheesecake Factor earlier this week.

We're not sure that there's anything more romantic than being presented with dessert to shove in your face, so wouldn't be that surprised if Demi hadn't been able to resist making eyes at Wilmer over the plastic spoons after all.

Tweeting Demi on her birthday back in August, Wilmer said: "Feliz Cumpleaños to my angel @ddlovato, U continue 2 make me proud. U are the hero this generation it’s been waiting 4! With & by you always."

"You are amazing... Than you so much love. You mean the world to me," Demi replied.

If that wasn't enough, they were also spotted together on a shoot. Remember the one with a leopard? Well, have a little look and see who that is lurking in the corner there..

Demi Lovato back dating ex-boyfriend Wilmer Vanderrama?

Demi's maintained that she's happy being a single gal for a while now, but either way it's probably lucky that both she and Niall are just pals anyway.

What do you think about all this?

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Images: Twitter / Demi Lovato / PA