I can understand the confusion. I suppose there is a lot of situations where the sex that takes place in the LS tends to be more along the lines "i want to see another man fuck my wife" which in my mind suggests fast hard sex (which is great and nothing wrong with that). I would image that for many women, seeing their partner have slow, sensual passionate sex with another woman might not be a turn on for them (I could be off on that) so I was thinking it is ok for a man to want to see that and if other people felt similar.