Cassandra watches. She has no choice.

Darkwood draws the wand out slightly before pushing it back in, setting up a rhythm that has me rocking onto my tiptoes, sucking more air into my lungs as he explores my ass. These strokes offer more than just attention. There’s some dark naughtiness in the act, a feeling that I’m doing something very, very wrong. Perhaps that’s why it feels so fucking good.

"Professor," I moan, part of me wanting this exquisite torture to end, another wanting it to continue and amplify.

"I've got you, little lamb," he murmurs, his free hand gliding up my back in a soothing caress. "Just feel."

The tension breaks in a rush of ecstasy, the tight tunnel of my ass clamping down on the wand as if it wants to devour it whole. A broken moan leaves my lips.

To be subjected to this, in front of a fellow student—a horrible student, but a peer, all the same.

It’s so embarrassing. Mortifying, really.

A surge of possessiveness fills the Professor’s gaze. "This is only the beginning, my pet. There are trials to come with pleasures you never dreamed possible."

The wand leaves my ass, sliding out with ease.

I look at Cassandra, her cheeks wet and skin clammy. She hasn’t moved an inch.

I hear clothes falling to the floor, the Professor undressing behind me.

I suck in a sharp breath as Darkwood separates my cheeks and positions the head of his cock against my entrance. The salve and wand may have stretched and prepared me, but he's still large. Accommodating him will not be an easy task.

"Breathe, Ana." His hands slide down to grip my hips, holding me in place. "Relax and let me in."

I do as he says, forcing my muscles to loosen. He pushes forward in increments, pausing whenever I tense up. There's a burn of discomfort, but also a thread of pleasure winding through it.

He’s about to fuck you in the ass, I tell myself. Like the dirty slut you are. Like the dirty slut you’ve always been.

God, I feel so nasty, but I don’t want him to stop.

He takes his time, savoring it.

And Cassandra watches.

With a low groan, he seats himself halfway inside me. We stand there unmoving for several moments, joined as intimately as two people can be. I've never felt so filled or claimed. It's both thrilling and frightening.

The shadows pull and twist, the power rising once more. They love this, feed on it.

He bends towards me, his heat washing over my back.

"You're doing beautifully," he says, dropping a kiss on my shoulder. "Are you ready for all of it?"

I give a jerky nod, unable to form words. He draws back and then sinks deep, setting up a measured rhythm.

Fucking hell.

But the discomfort fades the more I’m stretched out, replaced by a hot ache centered around where we're joined.

I moan as he finds a sensitive spot inside me, stars beginning to gather behind my eyelids. He angles his hips to hit that same spot again and again. The tension starts building once more, pleasure rippling out from my core. Wave after wave sweeps me away into a turbulent sea of delight as my body becomes accustomed the size of his cock.

This is a different kind of sensation than when he last took me.

It’s deeper.

Thicker.

Cloying at my insides.