YOUR mommy is very pleased with you because you have been so well behaved and she wants to give you a big reward. Rubbing over your diaper she feels you getting a big stiffy which is just what she wants. Because then she can stroke it up and down and out it in her mouth. She can also rub it between her big breasts. She licks, sucks and rubs teasing you for ages. Whenever she senses you are about to cum she eases off and then starts again. Finally, with a big smile, she makes you do the biggest ever cummies for your mommy.