Penny has a strange relationship with her family in The Big Bang Theory, and one mystery doesn't help matters.

Here, THR has the exclusive first-look photos from Leonard and Penny’s wedding as well as what could be the most awkward wedding night ever — all included in the season nine premiere.

It was after the wedding that Penny was forced to swallow even more hard truths. While Leonard had admitted to cheating on Penny during an expedition at the end of last season, he had actually ...

Penny and Leonard Say “I Do” It may not have been the most romantic wedding in television history. In fact, it probably wouldn’t even make it into the top 20. But that doesn’t mean Penny ...

Leonard and Penny spend the whole of The Big Bang Theory season 8 engaged — and not really planning a wedding, either. They have a few ups and downs, of course, but Sheldon starts to understand ...

Wedding bells are ringing on the season premiere of The Big Bang Theory when Penny (Kaley Cuoco-Sweeting) and Leonard (Johnny Galecki) finally tie the knot in Las Vegas. Despite her concerns about ...

The fact that Leonard sees Mandy (Melissa Tang) regularly also doesn’t sit well with Penny, and their wedding night is ruined. The duo head home to Pasadena, where they spend their first night ...

The season finale of 'The Big Bang Theory' had fans' jaws dropping to the floor, after Leonard's parents come to town for his second wedding to Penny. But it wasn't Leonard and Penny who ended up ...