Make a request of her.

Seeing your mothers complete non reaction to her shrunken son licking her own vagina makes you think 2 things, firstly this is still within the "limits" of your allowed actions and requests, it doesnt get in the way of her tv time, or secondly at your tiny size she didnt even feel it. You think for a bit and seeing how well it worked before you decide to just ask.

"Mom?" you tenatively ask.

"*sigh* Yes hunny?" she says in a caring but annoyed tone. Sensing her exasperation you quickly blurt out:

"Last time I bother you I promise!" she seems a bit relieved as you say that but still over all dismissive.

"Can I do whatever I want down hear?" she shuffles a bit, shaking your world a little but not enough to cause you to flail in balance. After a little crunching sound (you presume she was mid snack during your question) she responds: