Freedom from having to perform sex

[CasualRealFun]

I was wondering what a sex encounter would look like if the female does not have to perform the sex. What I mean is, she is in a unique or particular situation where performing, having to show satisfaction, pleasure or lust is needed or required (would not match the situation), or showing these reactions would not match the circumstance. Like just having sex to have sex for fun, etc, etc.; not for love-making or romance. I think this happens and [imagined] more often in everyday life than not, and I for one, just would like to seen an example. I think this would be interesting because the actual sex does not have to diminish, just the opposite, but the reactions (looks, expressions and sounds) would not be the exact same, and I mean the exact same thing - every time and in every video.