The girls arrived at the library the next day and took the stairs up to the second floor, where Miss Worthington told them to change into their uniforms and see the girls in the dungeon.
Katie slipped out of her top and skirt and put them in a locker she shared with Sarah.
Sarah looked really hot in her apron, which was now appropriately sized so her breasts also were barely covered and the bottom of her apron came down to just below her lovely pussy, same as Katie's apron. They tied the uniforms in back and entered the door to the dungeon and found Marie and Sabrina naked except for strap-on dicks swinging from between their legs.
"Katie, Sarah, come over her and bend over in front of us, your ass facing our dicks," Marie said. The girls did as she ordered, and then were told to grab their ankles. Marie and Sabrina squirted lube into Sarah's and Katie's butts and then they inserted their seven inches of hard rubber into them an inch at a time.
The rhythm increased to a level where the girls were having trouble keeping their balance. Marie was ravishing Katie's butt. Katie's pussy was dripping wetness on the floor. Marie stuck a finger in her pussy and started fucking her to orgasm. Sarah had closed her eyes and was humming, a sure sign to Katie that she was enjoying herself. After she came, Sabrina told them to get up to the fifth floor and report to Miss Henderson for the day.
Katie was sore from what had just happened and had some trouble making up the three flights of stairs to the adult non-fiction section of the library, where she and Sarah had spent their first day. Miss Henderson was speaking to a young lady when she saw the slutty duo and motioned for them to wait at her desk until she was done.
Miss Henderson came over after a minute had passed and told them to continue restacking books as they had yesterday.
"And this time Katie, try to keep your tits covered up. I don't want to cause a scene up here," she said.
The girls started putting books back on the shelf and after a while Miss Henderson came up to Katie and told her to report to the fourth floor, where mystery, western and science fiction books were kept. "Can Sarah come with me?"
Miss Henderson grabbed a wooden ruler and whipped it across Katie's ass,leaving a dark red mark across both cheeks. "Never ask questions when given an order." Katie nodded her head in approval with tears running down her face and left the floor, taking the steps downstairs. Katie was told to report to Miss Kennedy, a young lady who had a knack for getting girls to enjoy the types of books normally reserved for boys.
But before Katie could get there she noticed Rita and Lacy in the stairwell landing. Katie knew she had to see them whenever she got to the library, so she walked up to them and waited for their order.
"Katie, come over here, we need to pretty you up before you work the Sci-Fi floor," Rita said. Lacy grabbed Katie by the arm and pulled her into a nearby ladies bathroom which was on the landing.
"You know you have to look the part in order to help people find what they want," Lacy said. She scrunched the apron top so it rested between Katie's boobs. "Hold still while I apply your work makeup," Rita said.
Rita used a blue marker to darken Katie's pale pink areolas blue. She then took a black marker to color her now erect nipples.
"Keep your apron from covering your boobs at all times today. Let everyone see how freaky and slutty you are. Don't let me catch you hiding your tits behind a book, as I may have to use a red marker over your entire ass," Rita said.
Lacy opened the door and pushed Katie out of the bathroom with enough force to cause her to crash into a wall. The marker on her tits was still a little wet due to Katie's perspiration and it left a mark of two blue circles with two tiny black circles for all to see. out of the ladies room. I Katie straighten up and walked up to Miss Kennedy for my assignment.
"Katie, what has gotten into you," she said. "Your tits look marvelous. Is it permanent?"
Shocked by what she was hearing, Katie almost didn't know what to say. "No Miss Kennedy. It is just magic marker."
"You look great and will fit in here well. I want you to stand at the front of the floor and ask everyone if they need any help," she said. Miss Kennedy positioned Katie near the opening to the department floor.
The young lady whom Miss Henderson was speaking with came into the department. "May I help you find anything," Katie asked her. "Yes, I am looking for a book for my nephew. Maybe you can help me?"
Katie smiled politely and walked with the lady to the area of young adult science fiction, where a group of girls from my college were gathered discussing the recent Twilight book. Everyone seemed to be talking at the same time, but they all stopped when they saw me. There eyes opened wide as if they were seeing a vision.
Jeannie, the lady Katie was helping, saw what was happening and pulled her into an alcove. Pressing herself into Katie, she said, "I saw you the other day and had to come back for another view. I don't know what you have done with your boobs, but you make me want to taste them even more. Let's go into the room over here."
She opened up a door to a large storage room which had a table in the center. Jeannie told Katie to climb onto the table. Jeannie climbed on top of Katie, removed her apron and starting sucking on Katie's right breast while her left hand felt Katie's other breast.
Katie started to moan causing Jeannie to remove her own panties and shove them in Katie's mouth to keep her quiet. Then she used her hand to massage Katie's pussy.
Jeannie got up for a moment to remove her top and skirt, then got back on Katie and started grinding their pussies together. Jeannie took off her bra and started kissing Katie, their tits mashed against each other. The all over friction caused both to come hard, leaving both women a sweaty mess.
Jeannie got off of Katie, used the apron to clean herself up, then got dressed and told Katie she would find the book herself. Jeannie left the room and Katie got off the table, and used the sodden apron to clean herself before putting it on. After a few minutes she also left the room, and saw Jeannie wasn't looking for a book, but was heading out the exit to the street.
Out of nowhere Miss Kennedy approached Katie from behind and felt up her ass. She whispered in Katie's ear, "You look good enough to eat, Katie. But your time is up. Go see Linda on the second floor."
Katie walked down the two flights of stairs and saw Sarah starting to enter the locker room. Sarah had a mess of deep red ruler marks on her ass. Miss Worthington motioned for the girls to change, and commented to Katie that her tits looked awfully good that evening.
On their out of the locker room, Katie realized her black and blue colored tits were still visible through her top. She walked with Sarah through the library and campus with everyone gawking at her colorful boob.
Having Katie's tits marked up in black and blue marker was among the most degrading things that ever happened to her. "I can't figure out why the bossy girls are such bitches," Katie thought to herself. Why would she make me walk around with my boobs uncovered and then mark them up to draw more attention?"
Katie also did not appreciate how their small group of friends at the sorority started calling her "Blue Tit" as a pet nickname, but thankfully it died down after another pledge at the sorority slipped in the dining room and showed her hairy pussy to half the house.
"I guess calling that girl 'Beaver' was more fun to them than calling me 'Blue Tit.'" Not much happened at work the rest of the week, as Miss Worthington was on vacation. Her replacement never heard of girls wearing aprons as uniforms, so Sarah and Katie got to keep their regular slutty clothes of tight tops and mini-mini skirts.
And, for some reason the bossy girls were not present. Katie feared that even if she was wearing clothes, Rita and Lacy would find a way to make her show her boobs.
Monday came around and Sarah and Katie went to the library after school, not knowing who would be there or what was in store for them. They saw Miss Worthington on the second floor, and she stood up as the girls approached her desk.
"My replacement told me you refused to wear your uniforms in my absence," she said. Katie started to speak but was told to keep quiet. "How dare you take advantage of my absence by creating your own rules? You know you have to pay for this. Just go get changed and see Marie and Sabrina."
