Call the MIDWIFE!

Whitney goes into labour on her and Zack's 'sten' night...

It's probably not the best idea for a heavily pregnant woman to go out on the razz when she could go into labour any second. Nor is it sensible to lock said pregnant woman in a van for the same reason.

Welcome to Whitney and Zack's 'sten' night, which goes a bit bonkers when Whit gets trapped in a taco truck with Lauren, only for her waters to break.

Whitney's unborn bubbah isn't the only thing threatening to derail the do. A few weeks ago, Lauren and Zack slept together - although for many viewers, the bigger crime was that they abandoned two perfectly good boxes of fish and chips in the process.