"Oh, yes..." she purred when it became obvious that Romilda had figured it out. "You shall learn that any Slytherin pales before a Ravenclaw."
Moving to sit closer, Cho inspected the leg still suspended in the air. The spell was working well...which was good, she would have to use it again sometime. Lowering her head, she inspected the younger girl's exposed pussy. Was Romilda still a virgin? She doubted it...the girl seemed like a whore.
"Where was I? Oh yes...I slip three fingers into Luna's pussy and began to fingerfuck her mercilessly," she began again, Romilda's pussy bulging and moving as the invisible fingers began to do as she described. "Luna begins to awaken, so I take up a large dildo with my other hand and push it into her arse. It begins to vibrate as I activate it, and I leave it buried to the hilt," she added, watching as Romilda's arsehole gapes open, admitting the invisible vibrator.