David ran into Sharon on campus in the early afternoon between classes. He could tell that she was sweating her project as much as he was worrying about his paper. He had a decent version that he was working on but he was concerned that he needed more sources. So after his last class this afternoon, he needed to go to the library. Sharon said that she still had more research to do too. They agreed to meet at the library around 4:00 p.m. Sharon had an idea for something to get David going but it would be tricky.

A little after 4:00 p.m., they found each other at the library. Sharon knew of a study cubicle that was in a corner of the floor where she had planned her research. There was a whole row of study cubicles along a back wall that looked at on one of the quads. She liked the one on the end because few students walked by her while she was trying to concentrate. But what she really liked for her plan for David was that the cubicles were basically a box with three sides that were only 4 to 5 feet tall. Built into each cubicle was a simple desk. There was just barely room enough for two people to study together in one cubicle if they got a second chair from another cubicle. The cubicle side with the space for a chair faced out the window, instead of facing the rest of the library floor. And what Sharon thought of as her favorite area was on the sixth floor of the library so when she got bored she could look at the window down on the quad. So Sharon took David there. He got set up in the cubicle next to hers and started looking for more books on his paper topic. They both worked steadily for the first hour. Then Sharon peeked around the adjourning wall and whispered to David, "Hey, come over here for a minute."

David had been concentrating on looking through the stack of books that he had pulled but was glad for the interruption. He stood up and came around the wall to her cubicle. "What?", he asked. "Bring your chair around," said Sharon. So, he pulled his chair around into her cubicle and she scooted hers over to make room. "What are you wearing under those jeans, big boy?" she whispered. David blushed slightly and looked around to see if he thought anyone could hear them. But it looked like the closest students were four cubicles away. "Um, the new ones," he told Sharon. "Which new ones?", she asked. David whispered back, "The small ones. Like the ones you had me put on last night." "Oh, I liked those on you. I didn't get much of a look, though since your roommate showed up at the wrong time," she said in a soft voice, "I need to take another look." David replied, "Well, come over to my room later" as he was still hoping that their chastity pact would end sooner than Friday. "No, I can't wait. Let's see them now," she countered. "What? Here? You have to be kidding!", David said, almost a little too loudly for the conversation that they were having in the middle of a library. "Yes. Here!", she whispered back, "And keep your voice down. No one is going to see you. Just stand up and drop your jeans. No one can see through the cubicle. You will just look like you are standing up and stretching".

David was uneasy about dropping his jeans in the library but Sharon had a way of making him do things that he wouldn't ordinarily do. And he still hoped that he might get something good out of tonight. So he tried to look nonchalant as he stood up. Sharon was right. The cubicle came up high enough that everything below his belly was blocked by the walls. David unbuttoned his jeans and pulled them down just a little so that Sharon could see that he was really wearing the new undies. But she wasn't content with just a flash of his underpants. She tugged his jeans down to his ankles really quickly. "Hey!" David said, a little too loudly. One of the other students down the row stood up and looked his way. David just waved at her and said, "Sorry!" The student just shook her head and sat down.

In the meantime, Sharon had decided to pull his new undies down too. David tried to hang on to the waistband but she was too quick for him. In a split second, his briefs were down to where his jeans were puddled around his ankles. He looked down, surprised. But Sharon already had his dick in her hand and was making a jacking motion. Then she bent over and put his dick in her mouth. She started to work his dick in and out while David stood there in shock. Sharon reached around to his butt and placed a finger in his crack. Despite his surprise, his dick responded by getting hard. He didn't know what to hope for. Would she actually make him cum in the library?

Sharon knew that she had to be careful not to make David cum. That would ruin their deal of not cumming this week. But she had said that there would be no sex this week and thought that this had probably cross that line some. David probably still thought of real sex as penises in vaginas so maybe he would agreed that this didn't count. As long as she didn't make him cum. He was standing absolutely still at first as she mouthed his dick but he had recoiled slightly as she had reached around to his butt and put one finger on his crack. Sharon knew that David was not use to anything near his anus. So she had not gone even farther than to grab his buttocks hard when they had sex. She liked the idea of pulling a boy in further as he thrusted.

Sharon had thought many times about how she was such as doctor's kid. Her parents used medical terms to refer to body parts and such when she and her brothers were growing up. While her brothers still referred to their dicks and balls, no doubt, in the company of other boys, their parents had been very careful to teach them the proper words for everything: penises, testicles, rectum, anus, breasts, ejaculation, condoms, birth control pills, sperm, and, weirdly, she remembered, Intercourse. This was during her Dad's practice in pediatrics and adolescent medicine when he was seeing kids and teens for everything from illness to physical exams. She had learned in high school that she liked "intercourse" really well. But she had used that word once with a boy she was dating and he had been puzzled by what she was asking him to do. She had quickly switched to language that this boy and all boys understood, "Do you want to screw?" or "Want to fuck?" She even knew the parts of a boy's sexual anatomy pretty well since her Dad had lots of materials on adolescent sex and behavior in his office at home. Sharon had studied the textbooks and knew something that most boys her age didn't know: boys had a prostate and other glands that made the fluid that shot out when they came. They thought of it all as just sperm but she knew that very little of that fluid was actually sperm. After a few sex dates in high school with her first real boyfriend, the one that she had first fucked, she had become interested in the wetness on the crotch of his underpants after they had made out. At first, she thought that maybe he had cum a little in his briefs. She found one of her Dad's books on male puberty and read that it was informally called "pre-cum" but it wasn't really an ejaculation. "Pre-cum" might contain some sperm though so the book stressed educating boys not to use the withdrawal method for birth control as it wasn't safe. She also learned that the correct term for "pre-cum" was "pre-ejaculatory fluid" or Cowper's fluid as the Cowper's were the glands that made it. She also learned that the Cowper's gland was just inside and near base of the penis between the testicles and the prostate.

Speaking of pre-cum, David was hard as a rock and she could taste something at the tip of his penis as she sucked him. He was beginning to move his hips a little and his testicles were high and tight behind his penis. She was sure that he would start panting any second. But the one thing she didn't want is for him to cum and spoil their week. So, she immediately stopped sucking him. His penis jerked a couple of times but he didn't cum. He was looking down at her and she smiled up at him. "Happy?," she whispered. "Uh, you're stopping now?", panted David. "Yep, that is as far as we are going tonight," she replied. And she pulled his new undies up and over his still throbbing erection. Disappointed, David just stood there for a second and then looked out across the cubicles. "Shit," he said under his breath. That looked like Tom at the other end of the floor and coming his way. David reached down quickly and pulled his jeans back up. When he looked back up, it was Tom and he was walking their way. Sharon slid back up on her chair and David tried to look nonchalant as Tom stopped on the other side of their cubicle. Sharon grabbed one of her research texts and tried to look like she was reading. Tom looked over the side of the cubicle and saw her. Nothing out of the ordinary except that David looked flustered and was standing a little awkwardly. His face was slightly flushed. He was definitely curious about whether he had interrupted something. Had David and Sharon been making out in the library stacks? Tom said, "Hey, sorry to interrupt. Just saw you standing there. New study spot?" Sharon quickly replied, "Yes, I asked David to try out my favorite study cubicle." Tom didn't know if Sharon was serious or not. He suspected not. There was a pile of books there. But David's face had the look of a guy who had just been up to something. Of course, Tom didn't realize that David hadn't been up to as much as Sharon had been just a minute ago. "Well, see you guys later, I guess. I'm done for tonight," as Tom strolled off in the direction of the elevator. He knew enough to leave when another couple had that look. He was curious but polite enough to know when he wasn't welcome.

As soon as Tom left, David looked down at Sharon and had to laugh. It was as if he had gotten away with something really big. Mostly he was relieved not to have been caught with his pants down and Sharon sucking his dick in the middle of the library. Sharon smiled and said, "That was close!" David said, "Yeah, if I hadn't seen Tom coming, he would have seen us for sure." But Sharon whispered, "That's not what I meant. I was afraid that you were about to cum. You looked really close that way." "Right", said David, "Another second and I would have. Any interest in continuing this back in my room or your house?" "Nope, Sharon said, "That wasn't our deal. No cumming by either of us until this weekend." "I thought that you said no sex this week either. And that looked kind of like sex just now," David countered. "Yeah, well, it wasn't. And that is all you get tonight. Sweet dreams!", replied Sharon with a small smirk.

"What, are we done tonight?", David asked.

"Fraid so. I need to go back to the house and work on my notes. You need to get back to work on your paper," she said.

"You are going to leave me like this?", he said.

"Like what exactly?," Sharon replied.

"Um, have you heard of blue balls?" asked David.

"That's a myth. You will be fine. It won't kill you. Your balls may be sore from not cumming but no harm done. See you tomorrow!" Sharon said, as she packed up her notebooks and and pushed the chair back into the cubicle."

David grabbed his stuff and walked her out of the library. They had one of their long goodnight kisses in the quad before she turned to leave. David felt like he was about to walk bowlegged back to the dorm. Sharon turned back quickly and whispered in his ear, "Oh, and keep your hands off your dick tonight. We don't want any accidental orgasms, right?" David said, "Okay, right" without any enthusiasm or confidence that he was going to make it to the end of the week. As he walked away, he became suddenly worried about having a wet dream tonight while he slept. It had been months since he had one what with regular sex with Sharon and his occasional need for masturbation when he could manage. He wondered whether having a wet dream would count or not count for their agreement of no cumming this week.

Sharon was having a similar thought as she walked back to her house. Sucking David had been exciting. It would have been boring had they not been in the library. She wondered if he could hold out until Friday. She considered the possibility of him having a wet dream too. Another part of her Dad's books on adolescents had involved wet dreams for boys and how they could cum in their sleep. Girls didn't have them as far as she knew. Sharon thought that normally a boy would have to go without sex or masturbation for longer than a few days to have a wet dream. But then she realized that might not be true if the boy was as sexually frustrated as she hoped that she had made David since last Friday. She got a little excited at the idea of David soaking his new undies while sleeping. At the same time, she hoped that it didn't happen. She had plans for him and, if he got any relief at all, her plan wouldn't work as well. She got back to her house and resumed making notes for her project. She had another worry. What if she couldn't hold out until Friday? She was as sexually charged as he was. She resisted slipping a finger into her panties once she went to bed. If she had, she was worried that she wouldn't be able to stop.

Tom was in their room when David got back. Tom thought about asking him what had been going on at the library. But then thought he could wait to see if David would spill first. David undressed and climbed into bed. Tom was already in bed and reading a book. He had looked over as David had undressed and thought that the crotch of David's new briefs looked a little moist. Probably from making out in the library stacks with Sharon as Tom had originally thought. He wasn't in the habit of checking David out that way. They were undressed in front of each other routinely. Tom didn't think anything of it. Tom had his own problem. His girlfriend's roommate was now constantly back in her own bed so he couldn't spend the nights with Susan as much as he had last week. With David in their room almost every night, Tom and Susan had no place to sleep together. Maybe David would be at Sharon's this weekend? Tom would have to remember to ask him tomorrow.