Naughty(ish)

You groan as Susan wastes little time in swallowing you down to the root, her throat instantly relaxing to let you slide in almost effortlessly. Your hands reflexively go to grip her hair, hips quivering as her nose brushes against your pubic hair. Her eyes roll upwards to look at you as your fingers take hold of her golden locks, the corners of her mouth twitching upwards as she smiles around her mouthful of your cock.

She makes little gagging noises, her throat clenching around your length as her tongue twitches and rubs against the underside. The sensations are so strong that it takes you a moment to realize she is not moving at all and you look down again to see she seems... unbothered? Perhaps she cast some kind of spell to let her breath (or at least retain a greater amount of oxygen) like this but she seems to have no problem keeping you deep throated and looks to be waiting to see what your next move is.

Something about this feels off to you. Not the part with your dick being buried in her mouth, that feels INCREDIBLY right, but how easily she is potentially submitting to you feels too.. well... easy. It actually makes you a little angry. Sure, you may still be young and new to things, but you were not born yesterday! And your crash course in how the social elements of how the magical world works have not been for nothing!

With that in mind, you press against the back of Susan's head and thrust your hips forward. You may not be able to get any deeper but you make it clear you are going to do all you can to make sure she stays where she is. Susan's eyes widen for a moment in surprise at your sudden forcefulness but she still does not put up any resistance beyond a momentary reflexive movement.

You are unsure how long you keep her that way, the small sparks of pleasure the twitching of her lips, tongue, and throat send up your cock making it feel like seconds last for minutes. Eventually, the clenching of her throat starts to increase in strength and frequency while her tongue begins twitching more rapidly. Her body quivers as the wet gurgling sounds she makes grow in intensity, and her eyes look up at you again with a small note of concern in them.

Still you hold her in place, noticing that the only effort she is making to get your cock out is the automated process of her gag reflex. Even stranger, you notice the edges of her mouth are still turned upwards even as you see her eyes are just starting to roll back.

With a frustrated growl, you pull her off. Your dick, coated heavily in her antidote-tinged saliva, pops free and leaves you connected to her tongue by a thick strand of spittle as she openly pants for air. "You're messing with me," you grumble at her, "Either I don't have it in me, or you have some way of neutralizing it, but you're not going to fall under my control if I **** you to swallow my load, are you?"

"Being... careful," Susan gasps in response, "VERY... good... Sweetie. Y-You're right... I was... juu--GHLKH!"

You quickly push your manhood back into her mouth while she is still talking, once more bottoming out in her throat. Again, you are surprised at how little she resists you as you do so, her hands rising up not to push you away but take hold of your buttocks to help steady herself. "That's not... NICE," you grunt as you give her a hard thrust, "Even if you're not a teacher here, you shouldn't lie to a student, Mrs. Harker."

Your hips began moving back and forth, your dick already slick enough that you can face fuck her hard from the start. At the same time you see Lifelines beginning to glow on the back of her head and you run your fingers over them in a contrasting, gentle manner. Susan seems to like this conflicting treatment, given the way she begins slurping louder at your rod on each downward thrust of her head and how tightly she squeezes the cheeks of your ass at the same time.

"Maybe... I should... make you... swallow it... anyway," you say, emphasizing each pause with another deep thrust and gentle finger rub, "Seems like... you... want it... bad enough!"

Susan moans at that, sending additional vibrations up and down your shaft as you watch her visibly shudder in what you are fairly certain is anticipation.

You suddenly pull out again, feeling your climax approaching already as you keep your grip on her head with your right hand and take hold of your cock with your left, pressing down on the head with your thumb. "Then let me know," you grunt as you try to hold back the flow you know is coming, "you actually want it. And this isn't some new goddamn test!"

Susan takes a moment to catch her breath again, her chest heaving in the confines of her uniform before her smile grows into what looks to be a less mischievous and more genuine one. "Controlling but considerate," she coos, "My my, Sweetie. That's a more interesting response than you know."

She sits up, tilting back her head. "But yes... I think I WOULD like a nice thick mouthful, if you would be so kind."

Opening her mouth wide, she sticks out her tongue to give you a big target to aim for. "Like mother, like daughter," you grunt before you pull back your thumb and stroke yourself hard for a few seconds before you loudly groan and your sperm fires out in an arching stream that splatters into her waiting maw.

Subconsciously, you are surprised at how good your aim is as every spurt either lands directly in her mouth or only the very last few drops splatter her lower lips. Susan moans softly as each warm blast lands true and, once you are spent, swirls what she has not already swallowed around with her tongue like she was sampling a fine wine. You notice a few sparks of yellow energy cracking against and eventually overwhelming a few small pink bolts as she does so before she eventually closes her mouth and eyes while dramatically swallowing your seed.

At that moment, you briefly notice the same kinds of rainbow colored energy lines that connect you to Harmony starting to rise from her body and drifting in your direction. When she opens her eyes, Susan seems to notice them as well and, for a moment, there is genuine panic on her face. However she quickly regains control, concentrates, and the energy retreats back into her body. When she looks up at you, she looks impressed.

"Iris warned me you might have picked up that trick already," she says, "but that you can already make Spirit Reins THAT strong without even trying is... well..."

"Spirit Reins?" you ask, pulling up your pants as she stands up and stretches.

"Hmmm," she grunts in response, "How much is it safe to tell you right now...?"

At your baffled and frustrated expression, her smile changes subtly, this time into a more compassionate looking one. "I know you don't have any reason to believe me, Sweetie," she says, "but it's true Iris, Rikka, and I are working together on something. Something we can't tell you fully about juuust yet... and not only to keep ourselves safe but you too."

She suddenly claps her hands together, rubbing them eagerly. "Buuuut... that doesn't mean I can't help you learn a little more about what you're already doing so you have better control over it! So just think of me as a guest speaker at an extra-credit lecture!"

You sit down on the edge of your bed, crossing your arms skeptically but still listening.

"Now I've always been more of a hands-on experience type of woman," she says, "So today's lecture on Spirit Reins is going to need a practical element. You've been having sex with my daughter Amelia and her roommate somewhat regularly, haven't you?"

The sudden change in subject matter catches you off-guard and you sputter in response before managing to nod.

Susan giggles before continuing, "No shame in that, Sweetie," she says, "The important thing right now is this: I want you to think, really hard and deeply, about your connection to one of them and how much you want that one to drop everything and come over here and see you. Right now."

You give her a cautious glance for a moment, but then close your eyes and concentrate.