I'm looking for two things.
The sexiest way to tell someone they are allowed to cum.
and
The sexiest way to tell someone they are not allowed to cum.
For me I've always has a soft spot... or in this case a hard spot for sweetness.
"Sweetie you've been so good while I've had you locked up. You haven't begged to be released or anything. I was thinking about all those times you would let me sit on your face while you ate my pussy and your poor little chastity cage would leak precum the whole time. This time I think I'll give you a blow job while you down there."
"Baby I know you've been waiting a long time and I promised I'd let you cum today but it would make me so happy if you'd wait just a little longer."

