He tells her how many days it has been
since his last Climax:
When a couple use this Wish Word he commits to keep track of the number of
days since his last Climax so that
whenever she asks "Days?" he is able to tell her.
She may ask this just to find out how energized he is, as the
longer he has lasted the more keen he will be to engage in any activity
she wishes.
Of course this is useful when she wants to have him Release at about
his average, and she can't remember how long ago he last got Release.
She may also enjoy
asking him just to remind him of how long it has been, and to remind
him that he has given her control of when he will next get Release. So
this Wish Word becomes a nice way of reminding him that he is her
Knight.
As it is so easy to ask this a Princess may enjoy doing so when he
doesn't expect this, such as when out shopping together or when out at
a restaurant.
For him to always be able to answer her asking "Days?" he will have to
always remember how many days it has been. So even on days when she
doesn't ask him, he will be keeping track of how many days it has been.
So her using this Wish Word has him feeling more hers all of the time,
even if she doesn't ask him very often.
When he has lasted for his usual time, or for longer, it is rather
powerful for her to ask "Days?" near the end of sexual activity and then
not have him Climax. Having asked "Days?" he knows that her keeping him
going is her very deliberately keeping him charged up.