"An excellent idea... How would you like to go in?"

"For some reason, I'm thinking head first from the back." which is a bit odd, now that she considers it. It's the way an inconsiderate lout just grabs a random lass when he has the munchies. Suddenly one was being swallowed. No warning at all and no chance to say no. Of course a girl is not supposed to say no to a hungry boy, but he should at least have the courtesy to ask before eating.
Not to mention it is hard to keep the lad from grabbing a peek as well. Not that he can't other ways, but with one's head in his throat, one can't catch him.

Still, one does like a little variety, and she should be able to trust Jason. So a moment later, she is seated with Jason behind her. Then she feels his hands grasping her and his mouth on the back of her head. His head slides over her, quickly blocking her view. As it does, Anne starts unbuttoning her blouse. She may trust Jason, but he is still a boy, and he is not to be tempted with a free chance to cop a feel.
It would likely be best to undo her bra as well, but with his mouth and her blouse restricting movement, that is beyond her. At least that means his hands are behind her where they are less able to get into any mischief. She will just have to hope he is not getting more of a view than he should. A bit of a faint hope, but her breasts do not feel that much longer than she would have thought they should.
Now his lips reach her tender mounds. Jason can't use his tongue to stimulate her in this position, but just his lips can be very arousing. Indeed, she feels her excitement building. Her breasts swell and her nipples are hard as Jason swallows them. By the time he finishes with her mounds, she can not stop a massive explosion that just about knocks her out. Her ribs and belly are consumed as she is in a delirious haze.
Waking, she finds there was a drawback to such wonderful happiness. Her hands are stuck to her sides by Jason's throat and she must depend on Jason to remove dress and panties, without feeling her up ... well, more than necessary anyway.
Of course there are advantages to having a lad take advantage of one, at least if it is the right boy and he doesn't push it too much. Jason is being reasonable, and Anne finds herself enjoying Jason swallowing her hips and covering her bush. Again she feels her passion increasing until a massive flood of emotion washes over her.
By the time she recovers from this, her toes are the only part of her exposed to air. A last gulp and that is corrected. Soon she is just a lump of dissolving meat in Jason's belly as he heads off to school.
Of course she is a lump who is trying to remember not to change Jason's sex, for a few days anyway, and to do some study on the splitting spell.. It's not much to remember, is it?