Doubt.

"There's no way." Her twin insisted.

"It's true! I saw the rings and the plug up her ass!"

"The Hermione Granger? That cant be. Maybe she was playing a prank on you?"

"She didn't even see me! Look lets follow her and I'll prove it."

"Fine. This I have to see."

The twins watched all day. The noticed how Hermione was a lot more social and cheerful. She seemed really happy about something.

They also saw her and Harry spending more time together. And Lovegood was seen around them too.

It was very strange.

Later that night the sisters followed the three all the way to the Room of Requirements. They hid when they slipped in.

"Okay something is definitely off. Lets go find out."

Carefully the two went into the room.