Charles spent the next days quite happily. He split his time between his office, Dr. Torr's lab and his home.

At home he had the girls to serve his every need. He was learning a lot about them and what they were capable of. They were settling into their teaching. He trained them in the tasks of keeping his house clean and organized as he liked it. He was molding them at night into lovers of incredible skill and diversity. During the day they acted as a small family. They ate together, exercised and talked about ways to better please him. Dr. Lassiter had told the girls to skip all classes and inform their friends that they were taking a week of vacation.

The four young ladies had discovered his sex toy cabinet the very next day and had been experimenting ever since. A side affect of activating the Learning Center seemed to be a new permanent desire to learn, to experiment and to experience new things.

Kat was reading through Dr. Lassiter's library on Anatomy and Physiology. She spent much of her time with a book in hand, and had asked the Dr. about doing some surgery or autopsy's if possible. Kat had also taken to wearing nipple clamps around the house. She had found she had a inclination towards being paddled and whipped. Her normally aggressive manner melted into submissiveness as soon as a ball gag was pushed in her mouth or her arms were tied behind her.

She had already spent one night standing tied to a huge "X" made of steel pipes and rings. Each of the other girls had taken turns at her exposed flesh with feathers and small paddles. Finally Charles had whipped her wi th a fresh tawse. He had whipped her breasts, and ass and inner and outer thighs until she felt like a glowing ember. He then sucked her clit gently and fucked her into a haze of ecstasy. That session had left her with multiple bruises. She didn't care thought because the exquisite torture had also caused her to orgasm into unconsciousness three times.

Toni was now studying Nuclear Physics. Her previous major had been Communication. She was quickly reading and comprehending a series of Master Thesis from MIT which she found in Charles's Library. In the cabinet Toni had discovered a fat red butt plug with two feet of horse hair hanging from its end. She had been wearing it regularly ever since. She walked through the house with her swishing tail twitching in time to her ass. Charle s had outfitted her with saddle and a hard rubber bit and reins one night. He had fucked her pussy and ass while Vicky fucked herself on the horn of the saddle.

The girls had lovingly renamed her Toni the Pony or Ponygirl. She embraced the name and always seemed ready and eager for any anal or horsy games the other girls wanted to play with their high stepping black beauty. She had asked Teacher for permission to have her nipples and cunt lips pierced. She had visions of chains running from her leather bit down to her nipple rings and from there to her right and left labia rings. Dr. Lassiter was charmed and titillated by the request but still hadn't approved it.

Victoria had mastered Russian and was now learning Swedish and Japanese at the same time. She had also discovered Dr. Lassiter's erotic library and a beautiful illustrated version of the Kuma Sutra. She felt that as a g ymnast she should actually be able to achieve the shapes the book insisted a man and woman could bend into. Not one to ignore a challenge she was constantly trying to get Charles or one of the girls to try the different positions out.

Tuesday at lunch found Vicky and Kat in a tangle on the dining room table. Kat's strap on 12 inch cock was somehow just missing Vicky's eager pussy as they tried something called "Elephant steps backwards into Pool". It looked like a bad game of Twister. Vicky, still the gymnast, worked out every day and was incredibly limber. She had caused a real flurry the first time she had shown her girlfriends that she could lick her own pussy. "No really", she exclaimed as they looked on in disbelief, "it's like touching your own nipples guys, I much prefer it when you do it!".

Arial had been on track for an A&S degree, but now had an incredible interest in computer languages and math. She was quickly designing compression algorithms and theorizing on possible trinary processor implementations.

Arial had also assumed the role of den mother and chief house keeper. She organized the other girls schedules, made sure the shopping and cleaning got done and resolved all disputes between the girls.

"No Victoria, Charles does not want to try position ninety-two tonight. I don't want you even suggesting it to him. It takes over a half hour to set up and you need to be at least six inches taller or it just won't work .. Don't pout Dear one, the picture shows them using a Rhino tusk anyway and I just can't get you one on such short notice. Come and sit on my face for a bit and I'll make you feel better.".

"Kat, Here's you ball gag dear, I found it in the dishwasher. If Charles agrees then your on first tonight. Would you like me to tie you and put you to bed? Well of course I'll tie it tight! Would you like me to lick you for a while and get you wet Dear. Oh my, I guess you don't need my help there. Your skin is so resilient Dear, if someone twisted my nipples as hard as I'm twisting yours, I'm not sure I'd ever recover. It's amazing how firm you ass cheeks are. You should be really proud. I could just spank you all day, and never a jiggle. SWACK.. SWACK.. CRACK!! that's three for luck darling, enjoy yourself.".

"Vicky I don't care what Ponygirl asked you to do, you put that vegetable down this instant. Find a carrot, that zucchini is for the stir fry tonight. I still have to provide meals around here you know". Toni why don't you work on your massage technique's on Vicky. You know how much Teacher likes a good rub down. Remember to oil your tits tonight Dear. I think Charles mentioned wanting to fuck them again. No I can't promise he will, you be good like the rest of us and await his pleasure. Toni if you are going to massage Vicky's chest and stand above her head, please remember that you may asphyxiate her when you put your tits in her face like that. Sorry sweetheart I didn't mean to be bitchy".

Arial was also experimenting with her own sexual identity as Teacher encouraged them all to do. She had once seen a white leather dominatrix outfit in one of her brothers comic books. X-Males or something. She asked Dr. Lassiter about it and now she dressed that way exclusively. Her white leather corset was strapped tight across her ribs pushing her already large tits even higher. White kid leather knee boots with high heels accentuated her legs and ass. Her white satin gloves were skin tight and reached to her forearms. At her crotch she wore either a white thong bikini or nothing at all. Her corset had a small loop in it on her right side and like a gunslinger she know carried a small white cat-o-nine tails there and a pouch with other odds and ends.

Arial's dominant side was growing daily. She was finding excuses to punish Kat especially. Kat seemed to mind this less and less. One morning Kat forget to pick up her own breakfast dishes. She had been called by Charles to scrub his back during his morning shower. When she came downstairs later after Charles had left for the office, Arial met her in the dining room. Kat had hoped someone would help her brush out her wet hair.

"Listen Slob, we follow rules here and one of the rules is that we pick up after ourselves.", Arial spoke in a low clear angry voice. With her heels and full domination outfit on she was an imposing presence. She towered over the suddenly contrite Kat. Kat was only wearing water and a small towel wrapped around her middle. As Arial chewed her out Kat felt compelled to assume a more apologetic stance. She sank to the floor kneeling and pressed her lips to the instep of Arial's boot. The cool leather made her lips quiver. Already her nipples were hard within the towel and her pussy was leaking with the anticipation of what she hoped was coming. She had been bad and she needed to be punished.

Arial's tirade of all Kat's faults finally ran down. Looking down at Kat's head placed so submissively at her foot she decided to go with what Kat so obviously wanted.

Reaching down Arial grabbed a handful of Kat's wet hair and pulled her roughly to her feet. "Come here you stupid little girl", she admonished, "now I'll have to punish you. This will remind you to be considerate of your sisters". Pulling her over to a large oaken captain's chair she pushed her over the arm. Taking two short leather cords from her pouch, she quickly trussed both of Kat's wrists to the opposite legs of the chair. Walking behind the girl she pushed her legs apart and quickly tied them to the legs on the side she was standing. She stepped back to admire her work yanking the towel off Kat in the process.

Kat was stretched across the chair standing on tip toe as the chairs arm cut into her waist. Her ass was taut and quivering and goose bumps appeared all over her back and legs. The wet hair of her cunt was visible as a dark slash beneath the crack of her butt. With her butt so high and her head so low the labia of her sweet pussy were protruding back beyond her thighs. The tight sphincter of her anus was shining pink and wet with droplets of water. Alicia let her whip swish through the air picking her targets. She was getting thoroughly aroused by her own sense of powerfulness and command and Kat's apparent submissive acceptance of her domination.

"Would you like five strokes for your misbehaviors Kaitlin?" she asked, in a stern no nonsense voice.

"Yes that would be fine", Kaitlin replied.

CRACK the whip struck just under her ass stinging her thighs. "Wrong answer. Would you like ten strokes for your misbehaviors Kaitlin?".

"Yes Mistress Arial" she whispered.

CRACK CRACK, the whip struck one blow to each cheek of her ass. "Louder Slob, Would you like twenty strokes for your misbehaviors Kaitlin?".

"Yes Mistress Arial, whatever you want", she replied quickly and loudly.

CRACK CRACK, again the whip struck a snapping blow to each cheek. "It pleases me to give you thirty strokes Slob, what do you feel about that?"

Kat knew better than to complain. "Thank you Mistress Arial, you must do what ever pleases you", she replied. She was already quaking with tense fear and anticipation of the pain and pleasure to come.

Arial smiled and looked down at the helpless girl. She dragged the whip through the drops of water on Kaitlin's back getting the whip wet. That would add a nasty spark to each stroke.

Like a machine Arial handed out the first five lashes of her little whip. She waited ten seconds or more between strokes to give Kat a chance to anticipate and try to control her impulse to tense up before the stroke. Kaitlin's ass was turning a lovely pink and rosy color were she had struck her. Kat was moaning in pain, small tears squeezing out of her eyes to fall on the chair and her breasts. Her ass was twitching back and forth as much as it could, as if to avoid the stinging strikes. She waited quietly for the Swish of the whip to bring her more pain/pleasure.

Arial planted three quick strokes across both cheeks. "Oh please Mistress no more, my ass is on fire", Kat protested. Arial responded with three more slow strokes on the backs of Kat's upper thighs just missing her glistening labia. Listening impassively to Kat's choked request for release Arial planted three more quick strokes across both cheeks. The skin of her ass was now red and hot looking. Waiting for Kat's breathing to recover Arial then slashed a brutal stroke that caught all of Kat's labia. "OOOooooooohhhhhhh aaaaaaaayyyyiiii!!!!" she screamed Arial rubbed the handle of her whip against her own seething cunt lips, grinding the rod against her clit. "Half way there", she thought.

Arial drew the last fifteen strokes out into a twenty minute mind game. Each stroke was powerful and no inch of Kat's backside was now untouched. Between strokes she teased and berated Kat for crying. After one particularly cruel blow to Kat's reddening labia she watched in wonder as Kat shook with an orgasm. Still the tears came but her tune had changed.

"Please Mistress," she panted from behind a curtain of wet hair in her face. "Please punish me! oh aaaahh yes punish me and make me be good. I Love you Mistress".

Arial slowed down after that. Each SWACK on the girls exposed skin was followed by a caress. Twice she drew the many strands of the whip slowly up between Kat's shaking legs to let them brush lightly across her wet sex and flexing anus. The first brought quivering sighs and the second pushed Kat into an orgasmic flood.

Finally Arial finished. CRACK, "That's thirty Slob, what do you have to say for yourself". Before Kat could answer Arial reversed her whip. Pressing the rod between Kat's abused pussy lips she slowly pushed six inches of it into her. She began a lazy fucking motion with her wrist. With her other hand she grabbed a handful of Kat's long hair and pulled back hard arching Kat's neck and lower back with the pressure.

"Thank you Mistress Arial, thank you so much, I will behave from now on. Is there anything I can do to please you Mistress?". Kat was exhausted but still more than a little aroused and she definitely wanted to please this blond goddess.

"Hhhmmm Yes well lets see what you can do" Arial replied.

Untying Kat's ankles and wrists, Arial let her slump bonelessly to the floor and took her place in the chair. Setting her pussy at the edge of the seat and leaning back, Arial placed her wrists behind her knees and drew them up and back.

"There now, come here little kitty Kat, grab your wrists behind your back, crawl over her and get my cream on your whiskers".

Kat positioned herself, careful of her still burning backside. She had eaten her sister-lover's pussy many times before, but for both women this was different. Licking slowly and lovingly all over Arial's sweet sex Kat felt totally dominated. She was so happy and so thankful that Dr. Lassiter had let her learn about her true self. Arial was feeling the same thing and as she took Kat's head in her hand to force fuck her pussy into her tongue and lips she began orgasming with joyful screams.

"Aaaaaaaahhhhhh ah ah ah oh ummmm aigghg *$&@!^#@$@ !!!!!".

Victoria reached out and turned the video camera off. This didn't interfere with Toni plunging a purple dildo into her pussy, or stop her from fingering Toni's clit and anus to their fourth orgasm. Their lives were truly one happy learning and experiencing party now and they all loved it.