James Middleton is poised to make his relationship with Donna Air public, no matter what his family thinks! The marshmallow company Boomf creator silenced the split rumors by appearing arm in arm with his girlfriend Donna Air at a Louis Vuitton launch red carpet. His relationship with the TV personality isn’t the only thing he is stubborn about. Kate’s little brother insists on growing out that beard of his.

James Middleton, 27, and Donna Air, 35, stood by each other at the Louis Vuitton party. Having just come back from the Geneva trip with Donna’s daughter, James Middleton didn’t seem tired as he posed in for pictures with his steady girlfriend. CNN reports that Boomf now looks for an expansion across the pond

It probably helped that his business just got approved for a huge expansion! If you didn’t know this already, Duchess of Cambridge’s little brother is the creator of Boomf, a marshmallow company that prints your favorite Instagram pictures on marshmallows.

The company is now expanding across the pond in the U.S. That may explain James Middleton’s big old smile behind his growing beard as he stood next to Donna Air. Looks like they are ready to quell any split rumors!

According to CNN, “Boomf has shipped over 2 tons of marshmallows in less than a year and made £100,000 ($168,000) in sales its first three months.” It has also just raised “£1 million ($1.7 million) from Nick Jenkins, founder of customized greetings card firm Moonpig” and others.

Talk about a boomf-ing business!

James Middleton (Kate Middleton's brother) is behind @boomf which makes... edible selfies: https://t.co/ZCjbImuspc pic.twitter.com/L6bWRZxcP5

— CNBCWorld (@CNBCWorld) August 7, 2014

Having a successful marshmallow company may be giving James the boost he needs to stand up to his family in protecting his relationship with Donna.

According to a previous article, a source close to the Middleton clan told Vanity Fair that his mother, Carole Middleton keeps Donna Air at arms length. While Pippa’s beau, Nico Jackson has been invited over many times, Donna has never been invited on holiday with the family. And they have been dating for a year! Maybe they don’t approve that she is almost five years older than James with a ten-year-old daughter.

In any case, the couple seemed right at home as they took to the Louis Vuitton red carpet event. Definitely not gonna split any time soon.

James Middleton looked spiffy in his hipster beard, patterned pants and a dark jacket while Donna looked chic in her flowy black dress.