Yes

"Alright Lavender. You can join us tonight but do you truly understand what will happen to you?" Harry asked.

"Of course like I said I saw you two. I want to be you ****. Well try it once." She blushed again.

"Prove it." Luna said.

"What do you mean? How?"

"Take off your nickers and give them to Master. Slaves don't wear undergarments. They could block Masters property." Luna informed.

Lavender looked at them in shock then around quickly. She pushed her nickers down her skirt and off. She picked them up and handed them to Harry still red faced.

Harry took them and looked at Luna.

"Pet open your mouth."

Luna obeyed and found Lavenders nickers shoved in her mouth.

"Hold on to these for a second." Harry looked back at Lavender. "You see she'll do whatever I tell her to. I own her. You will do the same understand? If I order you to suck me off right here you will. Or shove your face between her legs and eat her out you'll obey."

Lavender paled and looked at Luna standing still her nickers still in her mouth.

"I understand. I want to try this. Please?"

"Okay meet back here at 7 and be prepared. By the way lift your skirt I want to see my new fuck toy."

She blushed again and lifted up showing him her smooth hairless pussy.

"Nice already shaved. You are prepared. I'm going to enjoy pounding that beauty tonight."

He looked back at Luna still holding the nickers. He pulled them out of her mouth and put them in his bag.

"I hope you're ready for this. Master is incredible in bed. You'll beg to be his **** forever after tonight." Luna smiled.

She kissed him on the cheek and skipped down the hall.

Harry smiled and looked at Lavender with a dark glint in his eyes.

"7 don't forget. Oh and something else. Wait here."

Harry went back into the room. A few seconds later he came back with something in his hand.

"Turn around and lift your skirt back up."

Lavender looked shocked but did. Showing ass to him. Then she felt something being pushed in.

"What are you?!"

"Hold still." He ordered.

Lavender felt compelled to obey. Once the item was firmly in her ass he slapped it.

"Keep this in for the rest of the day."

He walked away leaving her both incredibly turned on and a little afraid as she got use to the plug in her.