04/26/2013 02:19 pm ET

James Middleton, Donna Air Make Their Debut As A Couple? (PHOTOS)

Over the past couple of years, we've learned exactly how to spot a Middleton romance: See who's on the famous sibling's arm at London hot spot LouLou's. And since Pippa's already settled down with her date of choice, Nico Jackson, it was James Middleton that set off the courtship alarms last night.

The duchess' 26-year-old brother joined Pippa, Nico, Princess Beatrice and Fergie for a night on the town with his rumored girlfriend, Donna Air. There's been buzz about the two since the pair allegedly met at another nightclub in February. But it looks like the gossip mill served us right this time -- James and Donna left Loulou's hand-in-hand!

So what exactly do we know about Ms. Air? She's a television presenter in the UK, she's an older woman (seven years James' senior) and she has a 9-year-old daughter with former millionaire husband Damian Aspinall. Oh, and she's tight with Beatrice and Eugenie, so she already runs in royal circles.

Check out James and Donna out and about last night and tell us: Do you think we have a future Middleton on our hands?

James & Donna leaving the nightclub:

james middleton donna air

james middleton donna air

A better look at Donna (isn't she stylish?):

james middleton donna air

And don't forget that other Middleton sibling...

The 27 Best Pictures Of Pippa Middleton

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