Brown is expecting her second son with husband Wes Chatham

Jenn Brown — and her baby bump — are out and about for a good cause!

The sports broadcaster and former American Ninja Warrior star hosted the 10th Annual Friends of Scott “Unforgettable Prom” for Kids with Cancer at San Diego’s Balboa Park Hall of Champions on Friday.

Over 250 kids attended the free prom with the permission of their doctors. Boys were given tuxedo rentals, and the girls enjoyed dresses (that they were able to keep!), as well as hair and makeup services, all at no cost.

At the event, the kids were able to arrive in limos onto a red carpet and dance the night away to celebrate their youth.

Jenn Brown kids with cancer

Tony Amat

Brown, 35, looked every bit the glowing mom-to-be as the event’s host in a black dress, black heels, and a gold statement necklace. She is expecting her second child, a boy, with 37-year-old actor husband Wes Chatham. The couple, who have been married for four years, are already parents to 17-month-old John Nash.

“I’m hearing such wonderful stories about siblings that are as close in age as ours will be, and we look forward to the challenges, too!” Brown told PEOPLE in November.

The newest addition to the Brown-Chatham family, whose sex they revealed at Nash’s first birthday party, is due at the end of this month.

Jen Juneau