It's been confirmed that Leonard and Penny will get together this fall on The Big Bang Theory.

But the relationship won't exactly go smoothly, as executive producer Bill Prady told Entertainment Weekly's Michael Ausiello in that magazine's latest issue.

"When they finally [have sex], it doesn't go so great," he said. "There was so much anticipation that when they finally make it all the way, they have trouble finding their groove."

Well, sure. Who among us hasn't been there?!?

Also, Prady aded, "Sheldon does not like waking up to find Penny in their apartment."

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.