Watch The Big Bang Theory Online: Season 12 Episode 12

at . Comments

Did Leonard want to help Penny's ex-boyfriend?

On The Big Bang Theory Season 12 Episode 12 Zack and his wife showed back up in town, and Zack told Leonard he was trying for a kid but was infertile. 

However, Penny wondered why Zack would turn to Leonard when there are other people he could turn to. 

Meanwhile, Koothrappali attempted to fix things with his ex-fiancée, Anu. 

Use the video above to watch The Big Bang Theory online right here via TV Fanatic. 

Catch up on all your favorite shows and reviews and join in the conversations with other fanatics who love TV as much as you.

Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.

Tags: ,