I heard the door to the apartment open in the early hours as I moved uncomfortably in my sleep.  Hands roughly pulled my head out and Jared's cock forced its way against my lips.  I looked up at him in the half-light, Sylvia stirring in the bed.

"Please Sir," I whispered quickly, the image of him knocking teeth out vivid in my head, "please can I suck your beautiful cock?"  He laughed at my use of 'beautiful' and forced his hard cock into my mouth.

It was humiliating to be used this way--my hands still handcuffed behind my back, still naked and half-awake--but it was also very arousing.  His big hands cupped my breasts and squeezed them hard.

"Are you going to the office this early?"  Sylvia asked sleepily, obviously not at all surprised to wake up to see her brother using their mutual slave.  Slave, that's what I now am, I realized and I had no choice but to submit to these two.

"It's a busy day," he grunted, fucking my willing mouth with his hard cock.

Fingers probed my pussy and Sylvia said, "Christ--she's wet!  She loves sucking you," she added and my face burned with shame.

"I told you she was a natural," he grunted as I sucked and licked.  His fingers seized my hair more tightly and I felt he was close.  "Swallow, slut," he warned.  "Swallow it all!"  He groaned and his salty warm come spurted into my mouth and I swallowed frantically, almost gagging.  Sylvia laughed as Jared removed his cock and wiped it over my cheeks.

"A natural cocksucking slut," he laughed.  "Aren't you, slut?"

I hung my head, face red.  "Yes Sir," I answered, wondering if they would let me rinse my mouth.

"Say it!"

"I am a natural cocksucking slut, Sir," I said, humiliated and ashamed.  They both laughed, then Jared zipped his pants up.

"I see you tagged her," he said fingering my collar.

"Why not?  She is mine as well."

"I didn't say she wasn't.  Did you teach her anything last night?"

"She's learned a few skills," Sylvia laughed.  Jared kissed his sister on the cheek and walked out.

Sylvia went to the bathroom, leaving me curled up on the bed and when she returned, dressed, she unlocked my hands.  She laughed when I examined the red raw marks around my wrists caused by a night in the handcuffs.

"Get me some breakfast."

"Please Ma'am, can I use the bathroom?"  For a moment I thought she was going to say no and then she nodded.  Quickly, I moved to the bathroom but she stopped me from closing the door.  Embarrassed, I used the toilet as she watched, her nose wrinkling at the smell.

I washed my hands and was about to rinse my mouth when she said, "No, slut, you keep his taste in your mouth for a while longer.  Now, get my breakfast."

Naked except for the collar with the tags jingling I hurriedly prepared her breakfast, my own stomach rumbling, and I realized just how hungry I was.  Sylvia made me kneel next to her while she ate and she occasionally gave me a piece of toast or a spoonful of egg, and each time I thanked her profusely.  When she moved or uncrossed her legs I saw up her skirt for an instant and, ashamed, I remembered what she made me do last night.

I cleaned the apartment and then hurried next door, still naked and cleaned Jared's while Sylvia watched me.  When we returned I was ordered to shower, to shave my pussy and to scrub myself clean.  Sylvia watched me so I had no chance to play with myself--I desperately needed to come but she showed no signs of relenting.

I was surprised when she ordered me to be seated and started to plait my hair into two pigtails.

"We've been planning taking ownership of you for sometime, slut," she said as she worked.  "When you first moved in with Jared, I went through your clothes to get your sizes and we now have an interesting wardrobe of clothes for you--for us to choose."  She laughed softly.  "One of the advantages of being rather wealthy.  Mother would be rather dismayed at how Jared and I use our inheritance.  There, I think that's appropriate."

I gasped when I looked in the mirror.  With no make-up and my blonde hair in those silly pigtails, I looked about sixteen!  Except no sixteen-year-old girl would allow her hair to be put into pigtails!  I always looked much younger than I am but this made me look so very young indeed.

She led the way to another room with a large locked wardrobe and a small iron bed.  Unlocking the wardrobe, she went through the drawers, talking softly to herself as she selected items.

"There," she said throwing me a pink bra.  Gratefully I slipped it on, followed by the pink knickers she also gave me.  Both were of the sheerest of materials and even though it was pink, my nipples were plainly visible.  There was no double lining in the crotch of the knickers so my lips could also be seen, and when I turned around to look in the mirror my bottom was framed in pink sheer material.  It was very cheap and slutty... but a perfect fit.

The next item was a white, long-sleeved schoolgirl's blouse and a gray school uniform tunic, complete with box pleats.  A striped school tie was loosely placed around my neck and tucked into the tunic.  At least my collar was hidden.

Sylvia rolled the tunic up under the cloth belt, just like we used to do in school to make our dresses shorter and the hem was thigh-high.  White socks and plain black school shoes completed the outfit.  I gaped at my reflection and a stunned schoolgirl looked back as Sylvia laughed loudly.

"You can see why you were an obvious selection apart from your natural desire to be a submissive slut.  You look so young and now even younger still."  I gaped at the image--she was right!  I looked like a schoolgirl, albeit one who had developed large breasts, but that added to my slutty appearance.  The stupid pigtails gave me an air of innocence while my dress and breasts made me appear a little cheap, a slut.

"Please Ma'am... why?" I whispered.  I looked like a slutty teenage schoolgirl.

"I find it amusing," she said, putting the straw school hat with striped band on my head, tilting it back just like the many girls did you saw on the underground.  Suddenly, she seized my throat and her eyes blazed at mine.

"You do everything I say!  You follow my orders!  Don't try anything today or you'll be very sorry!"

"Yes Ma'am," I said in shock, trembling.

Sylvia smiled and released me.  "Lift your tunic.  Quickly!" she snapped, and I slid the hem up until those awful knickers were exposed.

"Very nice indeed," she laughed.  "Little schoolgirl on the surface but hot little bitch slut underneath, correct?"

"Yes Ma'am," I said meekly, face red.

"Go and get my handbag.  You're going shopping with Aunty Sylvia."

*****     *****     *****     *****