Who knows what she would do to you if you got eaten again - you might not come out! Besides, this option is rather appealing.

She uses her fingers to stretch out her vagina, big enough for you to put your head in. You move in and lick it generously, and with a moan she forces your head inside of her. The walls of her vagina enclose your head, and then they contract as she orgasms, again and again. This motion serves to move you further in, until you are submerged up to your shoulders in her womb. This continues until only your feet are outside of her. With one final contraction, your feet are inside of her, and her vagina's opening shrinks, locking you inside for as long as she sees fit. You wiggle a bit, trying to get comfortable, and the motion causes her to orgasm again.

Now that you are secured, she puts her clothes on and discards yours in a nearby trash bin. She had gotten mostly B-pluses in concealment, but that was good enough to allow him to go unnoticed. Nobody particularly cared what had happened to the boy, people vanished often on the campus. Only the leader noticed that the slight bulge was consistent and undigesting, and she decided not to tell anybody.

A week passed, and during that time, your every movement caused her pleasure. You start to become suspicious after two weeks have passed, and you still haven't been let free.
"Hey!" you yell, trying to be heard. "I thought you said I would be in here for only a few days!"

She considers this, and decides...