A gag sounds unkind, but handcuffs could be fun...

"OK, now you have several designs to choose from. These two are the basic ones. I suppose you will prefer the metal design, but what we want here are restraints, not to hurt the lass. In fact, any bruise potential will cause you to have to start over. We want the girl held for when you can eat and digest her. That's fine. But it is perverted to harm or hurt her. So you want lots of padding."

"What's that?"

"That's the release. She can just press there and get loose. It gets really dull sitting around in restraints for hours until you are ready to eat her, so she can just press there and go about her business until dinner time."

That sounds strange to you. "But can't she just escape and not be eaten?"

Loni looks shocked "That would be cheating!"

"But..."

Loni looks at you like you are a hopeless nitwit "Society exists because everybody follows the rules. One rule is that you don't hurt the girl, whether she is eating you or you are eating her, tho she can hurt you if you are eating her. Another is that the girl is a prisoner until you release her, or she defeats the restraints. Just getting out by use of the release is not the same as defeating the restraints." She seems to be wondering if she needs to repeat this at a slow rate of speech.

"OK, ok, I guess I will try this design."

"Very good. Now any other questions? Oh, excuse me for a moment.
"So what is it? Joan?