Kaley Cuoco was recently spotted with some girlfriends in California just hours after her Ryan Sweeting divorce announcement last week.

Days after, the 29-year-old actress stepped out with tennis pros Bob and Mike Bryan at the Bryan Brothers Tennis Festival on Sunday at the Spanish Hills Country Club in Camarillo, California.

An onlooker told Entertainment Tonight: "Kaley came to the event yesterday and seemed in great spirits. [...] She was very happy and friendly to everyone. The day was lighthearted and she was with her close friends having a good time. She was in a great mood."

Kaley Cuoco was probably in a generous mood as well, as the "The Big Bang Theory" star donated four sets of four front row tickets at the Bryan Brothers Tennis Festival, which she auctioned off herself.

"I love tennis and I love their foundation, so it means a lot to me. [...] Bob and Mike [Bryan] have done so much for the sport of tennis in giving back in charities in Southern California and all over the world," said Kaley Cuoco.

The proceeds from the event were donated to the Bryan Bros. Foundation, which is "dedicated to helping support and develop the dreams of children in Ventura County and around the world," as per the website.

Talking about Bob and Mike Bryan, Kaley says, "Bob and Mike have basically been my god brothers my entire life. [...] Our families are very dear friends. Our parents are best friends. We go back a long time."

In fact, Kaley grew up with the Bryan brothers in California. Bob and Mike Bryan were actually the ones who set up Kaley Cuoco with her now estranged husband, Ryan Sweeting, back in 2013.

Kaley Cuoco even posted an Instagram pic from the event captioned, "Had an amazing time today hangin at the #bryanbrostennisfest #bryanbrothersfoundation loved seeing my friends @mikecbryan @bryanbros @lucillebryan and my favorite little Diaz girls!!! #mybestfriendskidsrock."