Lizzy is quick to decide "I want to be a full vore as fast as I can. I've been here on charity too long."

"OK, let's get off to our room where you can eat Lilian." you suggest. Might as well get the lass out of your belly right away. Besides, it may be wise to get away from Franky for a bit. She doesn't seem really mad at you, but it won't hurt to be away from her until she has time to forget about you eating her.

Lizzy makes no objection to leaving quickly and you are soon home. "Now, can you find some rope?"

"Rope?"

"Yes, you've learned how to vore, but you are still a novice, and this lass isn't. So we need to tie her up so she can't stop you from eating her."

"I think so.. Let me look... Here we are."

"Very good. Now we will also need..."

After you gather needed supplies you spit Lilian out. She lands on the floor a little surprised, which makes it easy for you to grab her and tie her up. She starts to struggle quickly enough, but you have the head start and the muscles, plus a little help from Lizzy, so she is soon trussed up.
As you tie her legs to the bedlegs so she can not struggle much as Lizzy chows down, Lilian is not giving up yet.