Partial control

You focus your mind and feel the pulse of the Stone. Suddenly, Emma is holding both of her arms above her against the bed, as if pinned by some invisible ****. You then send another thought and give her voice back. She immediately begins to scream and yell, not bothering with words but just screeching like a banshee. She's also flailing and kicking her legs desperately. You put a stop to this by suddenly making her legs go limp. She stops screaming as she registers the loss of control. You grin and then climb onto the bed. She still can't see you but notices an indent on the mattress. Her eyes go wide, and she begins to breath in short, panicky breaths.

You run your hands up and down her bare legs. She's looking in every direction as she feels someone touching her but still can't see them. As you slowly push her legs apart, she begins to twist her hips left and right. You don't even bother with the stone for this, but place two hands on her thin waist, and holding firmly, keep her from moving.

She's nearly hyperventilating now in panic. You certainly don't want her to pass out and miss the fun, so you look up and whisper "Calm down."

Her breathing immediately returns to normal, and you know that her heart rate is slowing back down. You then look down at her beautiful pussy. Although it is shaved, some stubble is beginning to grow back. The lips are still pink and slightly engorged from when you aroused her in the car. You lower your head and inhale deeply through your nose. Enjoying the smell of her musk. You briefly consider eating her out, thinking this pussy of hers probably tastes delicious, but your dick is about to shoot off your body it's so hard, and you can't wait any longer. You use the stone to send a shot of arousal through her to moisten her up a little for you. This causes her to exhale loudly and her skin to flush and break out in goosebumps. You then line your cock up with her now moist cunt, rubbing your head up and down its length a few times. This causes her body to stiffen.

"What's happening?" she asks in a panicky but not frantic voice. "What are you doing?"

You don't reply, but simply push forward. You both gasp simultaneously at the feeling of the tip of your dick pushing inside of her. Although she's wet enough for you to slide in easily, her pussy is still warm and tight.

"No, no, no," she starts to say over and over again as, with another sigh, you slide your entire length inside of her. She inhales sharply at the feeling, and you cry out. It's more incredible than you could have imagined.

You take a few seconds and relish in the feeling of her cunt muscles gripping you. You then decide to give yourself a little treat and, using the stone, add a couple inches of width and girth to your cock. She feels the thing inside of her get bigger and longer and begins trying to move her hips again. You're all the way inside of her now so it doesn't really matter. But just for fun you remove your order to stay calm. She immediately begins to freak out, screaming and cursing.

"What's happening!" she yells, "What the fuck are you?"

"Don't panic," comes your disembodied voice, "It's only a big cock inside of you."

You then pull out and slide in again, the head of your cock resting against her cervix.

"Oh God, no!" she cries out.

'This is going better than you could have planned,' you think yourself.

Now the question is, do you take your time and make a day of this event or get your rocks off quick so you can do more fucked up things to the starlet?