And we're at such a loss of words, we're going to let Miz Teigen tell you what went down:
Three's a crowd?!
In case you didn't know, the 29-year-old actress and the Roseanne alum met on their hit show The Big Bang Theory and dated for two years.
Of course, the blonde beauty would then go on to marry tennis hunk Ryan Sweeting in 2013.
But is it weird co-starring with a former flame?!
"Well, we dated like five years ago, so I think we both moved on. Johnny is actually one of my best friends. It's a situation that ended well… I understand sometimes it doesn't. It could have gone horrible."
We're so glad!
But get this… Galecki and Cuoco's new husband are actually FRIENDS!
Yup! The sitcom starlet revealed:
"He's one of my dearest friends. Ryan loves him. Johnny loves him. It's been a long time, so it's great. I got lucky! That could have been horrible."
We're so relieved the three of them are all amicable!
However, this whole situation– at least for Kaley — is quite the big bang!
P.S. Penny and Leonard (Johnny and Kaley's characters) are getting MARRIED in tonight's premiere of BBT! How excited and so not awkward!
[Image via WENN.]