Sister later, finishing up and on the way to see Denise now.

You relaxed as you heard your sisters door close. You had been worried she would come to your door and knock to see if you were home.

The latex outfit tiptoes out into the hallway and crept down it. She stopped you at the door to your sister's room, a finger coming up to your lips in a gesture of silence as she listened in. You heard the sound of some rustling, followed by the impact of her body onto her bed, a few faint clicks and beeps giving away the use of her phone. Your sister getting into a 'texting' grove as she made herself comfortable.

“Desiderium an cupidus soror.” A slight whisper emerges from your lips, your possessed hand seeming to trace a symbol into the door. The tracing seems to leave a faint purplish mark on the door, getting a bit brighter as she finishes before fading out completely.

“What are you doing!” you ask, trying to keep your voice low. She brings your hand up to your mouth, finger up, in a shush gesture as she listens. Her phone goes silent. Long moments pass, part of you wondering if she went to sleep, before a sound you never expected to erupts from your sister's mouth, a moan.

“Somnus et somnium!” The succubus suddenly shouts, your hand suddenly rapping the door where the symbol had been drawn. If you were able to you would have jumped at the sudden noise, shattering the quiet completely, and you cringed as you waited for the response. But after a few moments nothing happened, no further sounds emerged from your sisters room. Desperately wanting to stop it, your hand reached for the knob and opened the door, leaning in as your head peaked in.

You sister, Sarah, was upon her bed, legs wide, on her bed. Her right leg hanging off the side, while her torso was propped up by a plentiful amount of pillows upon lined her shoulder-length hair. Her cell phone lay next to her, just out of her left hand, forgotten. Her right hand, even with her apparent asleep, rubbed between her thighs, as her panties had been pulled down to her knees.

“Nulla sui subsidio.” The succubus said again, a finger pointed at your sister. You closed your eyes, you did not want to see what she is doing, and after a moment you felt your feet begin to move.

Stepping out of the room, your possessor closed the door, before stepping to the other side and opening the bathroom door.

“Well I should have just used the book, my energy is a tad low right now, but she won't be waking up for a while now!” She said, a slight giggle coming out, “I might have summoned something to handle it, but not all spirits are as accommodating as the imp, and giving animated life to objects is just asking for trouble.” She said, a finger flicking her tit, and your nipple before she reached for and opened the mirror.

She pulled out your sister's makeup kit, looking at yourself in the mirror, as she began to take things out.

“I'm thinking something that says... Teach me a sexy lesson. What do you think? Not that it matters!”

Not even waiting for your response, she began to apply your makeup, a soft humming sound coming from the latex suit.

"I think we will go see Denise, going to need another sexual battery at this point, though maybe we will run into some fun on the way!"

And that is how you found yourself on the street of your best friend. The sky darkened considerably since the suit took control of your body. The walk had been rather uneventful, but you nearly bit your tongue when you turned onto the right street to see a house party in full swing. Cars lined the street while seniors drank from their little red cups and music blared out. You were afraid that you would be recognized and pointed out, that you would never live down being spotted in drag, and your reputation would be ruined.
The latex suit had altered the color on your neck, arms, and other extremities to appear similar in color to your normal skin tone. While the form-hugging latex outfit appeared to morph into a version of a schoolgirl outfit, with a knee-high skirt and white buttoned shirt underneath a black vest. The schoolgirl outfit was not a surprise, though the fact that she had been a bit conservative with it was, and your face had been done with your sisters dark make up. You wanted to jump again as you felt the feeling of a hand slapping your ass, underneath the large latex tush, and felt a tongue sliding against your cock.

"Hey!" She suddenly said, "Sometimes the best tease is the reveal!"

Oh right... she can read your mind. She had gone a bit heavy around your eyes, with dark blue eyeliner, and a bit of blush on your cheeks. She had not painted your actual nails but made it look like they had been painted a blue by tinting the latex covering them. Your hair was still short but she had styled it in an approximation of a pixie cut.

As much as you tried not to think about it, the fact that a house party was happening just a few doors away did not leave your mind. The fear of being spotted remained present in your mind no matter how much you tried not to think about it.

Stopping right next to it, she paused to consider it, letting out a purposeful "Hmm."