Prince Harry, 29, and Cressida Bonas, 25, have been dating for about a year, but We Day in the U.K. marked the first official royal function they went to together.
Harry and Bonas arrived separately to today's event so Harry could prepare for his speech and Bonas could pose for pictures on the red carpet. The couple met up later to sit together in the VIP seating area.
Although Harry admitted he was nervous speaking in front of a crowd of 12,000 schoolkids, he loosened up enough to joke with the kids.
"If you were expecting Harry Styles, I apologize," Harry teased at the We Day event, benefiting the Free The Children charity, aimed at educating and empowering today's youth. "And no, I'm not going to sing."
Sticking to the core mission of the charity, Prince Harry aimed to inspire the children he spoke to and encourage them to help make change in the world.
"Every single one of you has done something amazing to be here today. It may not feel like it to you, but I can assure you that, collectively, your actions can and will shape the course of our future. After all, we all share this planet, so we must help and inspire others to do the same," he said.
After making it through his six minute speech, Prince Harry made his way to his dancer girlfriend at their seats and gave her a quick hug and kiss before sitting down, People reports. The casually-dressed couple was spotted sitting close and often whispering to each other, staying very low-key.
Toned-down outings aren't anything new for the duo. They were spotted at dinner out at a burger joint in Kensington in January just enjoying a laid-back meal together.