(Photo credit: Desiree Navarro/WireImage)

Talk about a bonus Jonas! Kevin Jonas and his wife Danielle are expecting their first child, the couple announced on Twitter.

"@daniellejonas & I feel so blessed to be parents-to-be. Happy 2 be sharing this news!" the oldest Jonas brother, 25, tweeted.

"It's true! We r expecting. So excited to share this amazing news with all of you!" his wife, 26, added.

The couple, who have been married for more than three years, regularly talk about starting a family on their E! reality show, "Married with Jonas." The Jonas Brothers musician was enthusiastic, but his wife was a bit more cautious about becoming a parent. Now, she's clearly ready.

""Iam so happy to tell everyone," she tweeted. "it's been so hard keeping this news in !!!"