It isn't crucial as to whether you choose to read with D and take a raincheck or to wait until the next day. The part that is crucial is how you deal with W until an opportunity to ML arises. What if you read with D, come to bed with W and take her in your arms and say, "W, you sexy thing, I am going to spend my time between now and bedtime tomorrow thinking of ways to make you scream." Anticipation can be good. I honestly believe that one of the mistakes I tend to make with H is not building up the anticipation enough.