Sheik Your Booty - S3.E4

A memory from the past, coupled with the growing health worries, see Mel's uncertainty about her future begin to manifest in the most unusual ways. But then she is made an offer to run a brothel in Abu Dhabi.

Sean has a client whose husband likes to watch her have sex. It's disturbing to Sean and when he and Nat argue about the weirdness of the situation, it further highlights their sexual differences.