An even wickeder thought comes to you!

You phrase it carefully.

<<... You will go to him, tonight: tell him that you know he's been masturbating, and so have you, and you should be sharing love instead, because you know you won't hurt each other. The very idea will make you so hot that you'll cum just from him kissing you the first time; and several times after that tonight!...>>

Hoping that your suggestion has taken hold in her mind, you return to your bed and try futilely to sleep, the excitement of what might happen keeping you awake until morning.