Permanent.

Harry pulled up his wand and cast the charm.

Both girls let out a startled yelp and shriek as the metal pierced their flesh.

There were numbing charms on the metal so it didn't hurt much. More like someone squeezed their nipples hard. And their clit a little softer.

"Well girls those are nice additions to my property." Harry smiled.

Hermione looked down at her new jewelry and poundered. 'I'll have to be even faster in the shower now.'

Luna admired the rings as she held her breast. 'They are as nice as I hoped. The clit ring looks incredible on Hermione.'

Luna saw the tent in her masters pants. She came over and dropped to her knees.

"Master can I suck your cock?"

Harry looked down at her then at Hermione.

"You both can share."

Hermione took the cue and dropped next to Luna as the blonde took out their master hard cock.

Hermione moved faster than Luna and encompassed the head in her mouth.

Luna frowned but went to the shaft and ran her tongue up an down as Hermione suckled.

Harry moaned and grabbed their heads.

They fought over who got the head but never stopped their ****. They didn’t want their master to be upset.

When one was deep throating him the other was sucking his balls. They switched back and forth.

Luna was the lucky one who had him in her throat when he came.

"Not all of it Pet." Harry moaned.

Luna knew what he meant. She swallowed most but kept a mouth full.

Harry slid out of her mouth and motioned them to kiss.

The snogged and Luna transfered the load into Hermiones hungry mouth.

She swallowed happily.

"Fuck that's hot to see." Harry said as he put his dick away. "Matter of fact. New rule. When you suck me off you must always share some with your fellow ****. Even if you two aren't together at the time." He smirked.

Hermione and Luna gave him a shocked look. That meant they would have to walk around the castle with a mouthful of cum until they found the other.

"You can swallow it all if a professor or someone interrupts you but only then."

Harry knew it was dangerous to make that rule as ironclad as his others.

"Understand my sluts?"

"Yes Master." The answered in unison.

"Good get dressed. We need to go before anyone comes searching."

The two dressed and the trio left the classroom.