You will now have hundreds of posts from me. My first is Stevens.

How about you take your first name as you last. Scott Scott. That would make life simpler. I always wanted to name my first born Melon. They would be Melon Colley. Cruel, but kinda funny...

Oh man, Melon Colley is worse than Justin Case. Poor kid.

Libby, why Stevens?

I just think it sounds nice and simple. Scott Stevens. Jessica Stevens.
Actually, I gave it no thought, it just came to me.

Scott -- you probably know that my wife, Jill, kept her last name (Whitney), asyou’re your wife, Jessica. When Jill and I were talking about names for our first child, Alex, we decided to give him Whitney as a middle name and Reynen as a last name – which we did with Tyler, too. While this does not solve the problem of pronouncing and spelling Reynen incorrectly, it does go a little ways in justifying the use of a middle name.
-Dave Reynen (son of the second Kenneth Eugene Reynen)

Why not Monnen?
A mixture of both of your last names!
Easy to say, easy to spell and cute ta'boot~
;-)