Mommy encourages you to try on my panties. Then i tell you its ok to touch yourself in them because it feels so good. Mommy wants you to fell really good in them. Then im SHOKED that you ejaculated so fast. Mommy lovingly teases you for being premature. Then I explain its ok because you are so excited to be mommy's panty boy that you cant help it. I instruct you to do it again and cum in mommy's panties for me.