"Now, Lizzy, this is the best tasting part of me. You don't want to miss it."

She does not seem convinced, so you add "It's a matter of fairness too. You are getting all that delicious food. So you should give your meal a good time, which means playing with the fun parts."

It seems to be convincing, and when you argue "You will enjoy it too", she resumes swallowing, or trying to any way.
Her tongue technique could use a lot of practice of course, but the saying is there is no such thing as bad sex, just good and better. This is definitely some of the good stuff. But you do get off as you finally manage to get her mouth around your middle. your juices are now a minor bit of lubrication.

Now, you work an arm in, and then the other. You figure you will be able to force her mouth a bit wider and slip in a little faster. Doesn't seem to be working...

But as you continue to wiggle your way into her guts, a lump in her throat starts to annoy you. A bit angry over all the work you have had to do, you give it a shove. Suddenly her next swallow is a SWALLOW. Well, maybe not really that big, but it is definitely a vore swallow, and you are moving into her stomach at a reasonable speed. A moment later, your shoulders are passing her jaws, and another minute and you are watching her jaws close in front of you. It isn't much longer before you are curled up in a ball in her middle.

"I did it! I did it! I really ate you!" From the bouncing, it would seem she is dancing a jig, or as close as she can with you inside.

"Yes, you should be quite proud. Now it is time to let me out."

She pauses, and you begin to worry that letting you out may not be all that high on her priority list.