I only managed a short paragraph in Blackheart Man yesterday before life intruded and stole all my time and focus away.  I think I'm working up to writing a sex scene, of a type I've not tackled before.  I'm not sure how to go about it, which is probably why I've left it this late.  But I needn't be fretting this much about getting it wrong.  Writing words is just writing words.  Once I have it written, I can ask a few patient somebodies to read it and tell me what doesn't ring true for them.