The former Girls Next Door girl recently took the time to talk about her upcoming reality series, titled Kendra, and revealed an interesting tidbit about her personal life.

The show, an "I Love Lucy meets Newlyweds" scenario, chronicles Wilkinson's struggle to adjust to domestic life with her husband-to-be, Philadelphia Eagles wide receiver Hank Baskett.

How much adjusting is there for Wilkinson to do? Let's let her explain it.

"The first time I mailed something on my own, like a couple of months ago, I didn't put a stamp on it!" Wilkinson, 23, reveals exclusively to Celebuzz. "My mom, she was like, 'Are you serious? You didn't put a stamp on your f*cking mail?' I'm like, 'Dude, I've never been on my own before, how am I supposed to know?'"

Of course, when you look like this, who needs to know how to properly mail a letter?

Check out Kendra's shocking confession below: