"This feels snug, but it is safe." I said, putting my fingers under the collar and against Vi's neck. The plush lining was soft and couldn’t cause abrasions, no matter how rough things got. Brenda and I had learned how much chafing and cherry-red stripes the cheap ones could create on someone’s neck. "This buckle has these snaps on the back." I tapped my fingernails on the silver buttons on the inside of the collar. "They'll break away if there's too much force put on them, which is what we want. Some people like collars that don't have breakaway features…those people are idiots or they're dead. Some are dead idiots.”

Vi kneeled in rapt attention. I knew this was giving her a charge, as I was in professor mode, the thing that made her horny for me in the first place, but I needed to get this out.

"So what does the buckle do?" I said, standing still, looking at Vi with complete seriousness.

"Breaks away if you pull too hard." Vi replied quickly.

"Good." I smiled. "This should never feel like it's choking you. Vir. They call it a choker but do not ever think it's normal for it to feel like you're not able to breathe."

Vi nodded, biting her lip.

"When I'm pulling the chain from behind, like when we're going to walk up the stairs to get destroyed by Brenda, I'll use light pressure. Mostly for show. Like this."

I demonstrated the pressure on Vi, pulling back as lightly as I could, just enough to make the chain taut.

"Mmm…oh that feels good." Vi shivered.

I smirked. "On the other side here, when I'm facing you, I have a little more leeway on the pressure." I positioned myself directly in front of Vi, ready for my magic trick. "From here, I can pull you a good bit harder." I tugged firmly on the chain and Vi tilted forward, her nose coming to rest right at the top of my pussy. "So I can do things like this to you."

Vi knew better than to move her head from the position it was in. She didn't want to, and I didn't want her to. I enjoyed the pressure against my body and enjoyed the helpless position I’d put Vi in even more.

"Alright, lesson over, you are now educated in collaring. Now that I'm turning the green light on, I think you're in a position to thank me for the tutorial."

"Yes, Professor." Vi said, licking at me through the thin latex that was strained over my pussy. It was like wearing a super thick condom, but that just meant that heat and pressure still worked just fine. The difference in sensation from Vi licking me completely unrestricted to being able to focus on the force of her tongue against my clit and lips was wonderful.