"Well, I have not been eaten feet first. But the girls I have eaten objected a lot more when I ate them feet first..."

"That's mostly because they could object more."

"Well, yes... OK, I guess we can try it..."

"OK, now just lie down on the bed here, face down."

"What are you going to do?" Her voice is distinctly worried.

"Get you a little relaxed. You will be surprised how much a back rub eases tension..." Not right away. Failiel has been touched by males about as rarely as she has been eaten. For a moment, she is likely debating which she fears more.
You don't wait for her to make up her mind, but start administering that back rub. After a second of panic tension, she starts to relax and lose that tension. It's not your most successful back rub. She can't stop thinking about what is coming next. But it is helping.
Still, when you stop, and move into position at her feet, you are once again dealing with a very scared girl. However, your assurances soothe her, and she even calms down further as you swallow her feet. Apparently, reality is not as bad as the anticipation.
She soon realizes there is something she had not anticipated. Done properly and without rush, being swallowed is a very sensual experience. Failiel is shocked enough to ask you just what you are doing, a dumb question since you can't answer, and because she already knows the answer. As her lovely legs are caressed by your lips, she is getting distinctly excited. Then you reach the apex of her legs and set your tongue loose on her delicate softness. Shortly, she gives a profound shudder.
Pausing, you reach up and pull her hands down to your mouth. Each is pushed into your mouth and then positioned on her mound. For a moment, she protests that she never does anything like this, a claim belied by her knowing what you are suggesting. in any case, about all you can do is resume eating.
Her belly quickly vanishes, but Those mountains definitely slow you down. As you slow down to taste them, Failiel gives up on her pretense of never having touched herself down there and begins to rub herself vigorously. It takes awhile, but with your help she eventually finds what she was seeking, indeed more than once.
In the meantime, you are reaching her shoulders, and then closing your lips around her lovely neck. Next she is reduced to a face looking out of your mouth, and finally your lips close over her. A few swallows and your mouth is empty, and a moment later your stomach is full.
"Feeling ok?"

"Yes. In fact this is rather nice. Certainly nothing like how all the girls I've eaten acted."

"You just were never interested in their pleasure. Just try to please them, and you will."

"Maybe, but it definitely helps that I know you are not going to digest me.

"Now on that point, I've never had a woman in my belly when I went to sleep without intending to digest her. Do you want to play it safe and get out before I go to bed? or take a chance? I should be able to avoid digesting you, but you are the one who needs to decide.