Okay, you know how on How I Met Your Mother there's a big, ongoing story about who is actually the mother? Well, I think CBS has spilled some of that storyline over to Two and a Half Men, the show that usually is paired with HIMYM on Monday nights. Why do I say this? Because they seemed to have cast a mother!

Actress Rena Sofer has been cast on Two and a Half Men as someone who played a significant role in Charlie's life and she comes back into it on September 22, the season opener. She brings along a child when she returns, a little boy -- her son -- who may have some connection to Charlie.

Now, the connection hasn't been spelled out, but if he has an affinity for booze, plays the piano, wears bowling shirts and chases little girls, you can bet he's Charlie's child. Of course, the writers will probably be more subtle, but this would be an interesting wrinkle in the show if that's the direction in which they're going.