Her pussy

You go with what you believe to be the most obvious answer, clearly she wants you to start eating out her dripping wet pussy. You pull your head back slightly to give your tongue room to move down towards her slick folds. Her fingers are currently taking up the space as she continues pleasuring herself. You feel the tip of your tongue brush up against her knuckle as you push your way in. The taste is overwhelming at first, musky yet somehow sweet, the smells that were previously bombarding your nose now take over your sense of taste as well, fogging your head in a cloud of sex.

"Oh!" You hear Angela gasp as you push your tongue in deeper.

To your surprise and deep dismay, Angela suddenly and quickly pulls her body away from you, leaving your salivating tongue alone in the open.

"Did you really think you earned that yet?" She asks, her body now fully turned away allowing you to see her eyes now glaring at you.

You have no idea how to respond. You simply pull your tongue back into your mouth.

"You're going to need even more training than I thought." She says as she begins to stand up.

You feel your heart sink as the sight of her ass disappears from your field of view.

"It's going to be hard for us to have fun if I keep having to punish you." Her voice calls out from wherever she currently is. "But not impossible."

She's soon back in front of your cage. At your position, you are only able to see her legs. All you can think to do is stay as still as you can as you watch them step over to the side. You hear a jingling coming from the door of your cage, you don't dare turn, but you soon sense it opening.

"We'll have to use this for now, until you can learn to be a good boy." You hear Angela say. You don't even want to think of what it might be.