Sharon was still working full-time on her project. She was worried about the Friday deadline and wondered how David was coming with his paper. She was struggling as much as David with their chastity deal this week. She had caught herself more than once with her hand in her panties after she went to bed but, so far, she hadn't broken their agreement. She was more than curious whether David was keeping his hands off his dick. Although she also thought that him living in the dorm made jerking off much harder. If Tom was around in their room, that certainly reduced David's opportunities. She supposed that he could masturbate after lights out in their room but he would have to be quiet about it. With communal showers in the dorm and at the gym, David had no opportunities there either. She guessed that his best chance would still be under the covers in bed.

Sharon liked his dilemma and hoped that it would keep him simmering until this weekend. She tried to think of things that she could do this week to get him hot and bothered, without letting him cum. Giving him new underwear was a minor gesture. She had the colored lowrise briefs to give to him still but wanted to pick the right moment. She still wasn't sure that she could get him to wear those on a regular basis. Some guys wore those and looked great, at least to her. Even her brothers owned a few different briefs now as she had seen them in the laundry basket at home some weekends. But most boys, including David, wore only regular white underpants.

The other thing that was bothering Sharon was her Dad's strong push on Sunday for her to get David to wear a rubber during sex. He had worn one when they first started having sex. She had been the one to tell him that she didn't like the feel and that she was on the pill. But now she thought that her Dad was probably right. Even though Sharon was sure that David wasn't sleeping with other girls now, he was a good-looking guy and wouldn't have a hard time finding someone to share his bed. It didn't seem likely but still...

Although working on her project was her big priority this week, Sharon thought that she still needed to see David at least once a day to keep his temperature rising until Friday night. She had a few ideas. And one good one for later today when she saw him next.

In the meantime, David was struggling. He woke up that morning with a huge hard-on in his new briefs. Tom was still asleep but David definitely did not want to risk getting up with a boner in his shorts at the same time that Tom might decide to pop open his eyes. So David stayed in bed and tried to think of things that weren't sexy. It was difficult because his mind kept coming back to Sharon and, weirdly, an image of spanking her over his knee. Then the image shifted to him getting spanked over her knee. Finally, he was able to distract himself enough from those thoughts that he felt comfortable getting up without embarrassing himself. Still, he had been right to be worried about being seen by Tom. And it turned out that David had been right to wait out his erection in bed. The second that David was upright and standing in his underpants, Tom rolled over and opened his eyes. Tom got a better look at his new undies than he had last night. And while David's dick was no longer hard, it still made a sizable bulge in his briefs. These lowrise underpants left a lot less to the imagination, David thought. However, Tom said nothing and just climb out of bed himself.

Both had early classes this morning so they wasted no time walking down the hall to the showers in hopes of getting there before the usual morning crowd. No such luck. Every boy on the floor seemed to be either in the showers or waiting for a turn. Tom and David were lucky that everyone showered ahead of them quickly. So they finished showering quicker than they expected and hustled back to their room to get dressed and off to class. David had pulled on another pair of the lowrise briefs so that he wouldn't have to explain to Sharon why he wasn't trying them out again today. Fortunately, Tom said nothing about David's choice of underwear as they dressed. David thought, "Maybe Susan has bought Tom some undies like these and he has been too shy to wear them yet." David had noticed that a few of the boys lining up for the showers and in the gym locker room weren't wearing regular white briefs anymore. Some were wearing briefs like the ones that he was wearing now and some were wearing skimpy briefs in colors. He hadn't given it any thought after his freshman year when he first noticed that not everyone was wearing the same.

David was happy about one thing. Sharon's taste in very tight briefs was keeping his dick more under control. He told himself that any more stimulation by Sharon this week without any sex would have him wearing a jockstrap all the time just so his near constant boner wouldn't be so obvious in his jeans. That wouldn't be that unusual. He had worn a jockstrap a few times when he was out of clean underwear and needed to do laundry. And in the locker room, he noticed that other boys occasionally must be doing the same. He had gotten better in college about doing his laundry more often and not running out of clothes so it had been awhile. That was one of the many changes in college life. He had been a disaster during his freshman year keeping up with his laundry. That and remembering to trade in his sheets in the dorm. All the things that his Mom had done when he lived at home.