One thing I know about writing sex scenes – I find it tricky to strike the right tone and, as a consequence, I tend to stop at the bedroom door, so to speak.
These scenes are notoriously difficult to write well. The Literary Review even created the annual Bad Sex Award to celebrate ‘the worst, most redundant or embarrassing description of physical joining, in a novel.’ http://www.literaryreview.co.uk/badsexpassages.html
Published writers admit that writing sex scenes turns them on – and the best way to make sure a scene is sexy, is to make sure you find it sexy.
‘Writing my sex scenes physically excites me, as it should.’ John Updike.