This question may seem funny, but it can really prevent a heartbreak if taken seriously. Many men are 'captives' of unwholesome movies and pictures available freely in the internet today. While the debate is ongoing whether it hurts anyone or not, lives and relationships are paying dearly for the effects.
The fact is that these movies change the perception of their patrons and raise immoral levels to criminal dimensions.
For example, do you know that recent research has linked the rise in rape, child por.n and incest to these 'adult' movies?
So it pays every one to be interested in what their partner sees in those private moments.
For a guide how to handle this sensitive issue with your partner see HERE