You decide to crawl in deeper. Wiggling you a bit, you push yourself farther in until your muzzle grazes the entrance of the vulpix's throat. The vulpix let out a sound, and licked you even more vigorously as you moved. Since it was asleep, the pull wasn't strong, but was still pleasent.
You slowly (very, very slowly) slide in, at the pace your going, it'd be faster to actually crawl down. You moan as your pulled deeper. Occasionally you'll move, tempting the vulpix to lick you more.