As a Domme with no sex drive, I think I can understand why you would be concerned about His wanting, as opposed to feeling obligated, to do it. I am only really turned on when My sub is prostrate before me and writhing around like a stuck pig....I have a distinct sadistic streak and get a great deal of pleasure out of watching her struggle. That said, sometimes when W/we begin I'm not in "the mood" -- mostly because I'm never in "the mood". But by the time W/we're halfway through, I'm practically panting as hard as she is. Not always, but frequently. I know this about Myself, so I can push through the initial "Eh, I'm not really into it tonight" phase. Also keep in mind that sometimes We Dom/mes just need a break...and yeah, I think you've got it right....just drop it and accept that We're not in the mood with grace and dignity. The last thing a tired Dom/me wants to hear is whining from His/Her sub about why they're not getting any...often it may be because the Dom/me feels like He/She has run out of creative ideas, or because They are physically tired, etc., and complaints will only make Them feel guilty.

Just a few thoughts.