Unexpected help

“I can tell you how to open the cabinets, and get those books.” Harry and Hermione turned with surprise to the erotic painting, to find Heather smiling coyly at them. “This room was my creation, after all.”

“Why would you do that?” queried Harry suspiciously.

“Because I’m nice,” said the blonde sweetly. “And you two make a cute couple.”

“We’re not a –”

Hermione cut him off. “Just tell us, then.”

Heather sighed, and squeezed her breasts absent-mindedly. “The protective charms on this room can only be bypassed by a user of sexual magic. A witch or wizard’s power can flow from many sources: strength of will, strength of hatred, strength of spirit – and strength of arousal.”

“That’s it. Hermione, we’re leav-”

He didn’t finish his thought when he noticed that there was no door back out – just another stone wall, with an indestructible window inset.

“Revelio,” cast Hermione. “Nothing.”

Harry turned to Heather Ophelia. “Let us go. Now.”

The naked blonde shrugged girlishly. “I can’t do anything – I’m just a painting, after all! The only way to get out is through sexual magic.”

Harry glowered at her, trying not to watch the white fluid oozing down her glossy thigh, before taking Hermione for a discussion with the wall.

“Harry, I can’t see a way out of this one,” confessed the witch, her tone consolational.

“Come on Mione, think! There must be some spell, something we haven’t tried!”

Hermione put a hand on his shoulder. “We may just have to weather this one, until we’ve learnt enough to bypass the protective charms.”

Not liking where this was going – more because he was afraid of what he might do than anything else – Harry turned back to the portrait.

“I’m sorry,” he relented. “Please, go on.”

Heather twirled a lock of silky hair between her fingers. “You promise to not destroy my home?”

“We promise,” agreed Hermione, giving Harry a silencing glare. Together, they perched on the edge of the bed, and looked to the painting expectantly.

“As I was saying,” beamed Heather, “sexual magic is perhaps the most ancient and powerful kind of all magics. I may have created this room, and several of the books in this room are my own – but the history of sexual magic stretches well before and well after my time. Speaking of which, do you mind if I finger myself?”

“YES,” cried both Harry and Hermione. It was difficult enough for Harry to focus as it was, with Hermione’s thighs rubbing against his, and a naked blonde posing in front of him.

Heather stuck out her tongue at them teasingly, and began rubbing herself anyway. “Sexual magic encompasses spells and potions which draw on your sexual power, or increase it. The more aroused you are, and the more sexual pleasure you’re in, the more powerful your spells.”

“So –”

“The better the fuck, the stronger the magic,” winked Heather.

“Not exactly how I would I have put it, but yes,” huffed Hermione.

The babe slid a long forefinger into her ever-dripping pussy. “The books on these shelves generally detail potions to increase your sexuality, spells to help others see things your way, and so on. There’s even a small ready-made stock of potions under a permanence charm, left by this room’s previous visitors.”

“Great,” said Harry. “How do we get out?”

“You fuck,” smiled Heather. There was an awkward silence between the two students, interrupted only by the sound of the painting finger-fucking herself. “You fuck, and you let down all your defences, all your walls. Open yourself to each other, and the sexual magic around you, and this room will unlock itself for you.”