A whole week later, at an out-of-town friend's house

This time an entire week goes by. Again, you call, and text, and have lunches together whenever you can. But it's no substitute for real quality time. And it does absolutely nothing to quell the constant throbbing in your tightly confined cock. Nore do her constant teasing messages!

After being locked up you'd immediately went home and, more out of curiosity, began experimenting. There had to be some way to get it off despite the lock. Right? Well, firstly, it turns out that it's very, VERY well fitted. The device is impossible to slip off or otherwise remove without first taking off the lock. Secondly, the more you mess with it, the more uncomfortable it becomes for your cock as it tries to become erect.

The plastic sleeve prevents any kind of meaningful contact with your cock. All you can do is jiggle it a little bit inside the sleeve when it's soft. But as soon as you do, it begins to swell and just adds to the frustration. ...A fact that only seemed to delight Blanche when you confessed your attempts to pleasure yourself to her on day four. As your 'punishment' she'd ordered you to do it every morning and every night, while thinking about her as Ms. White. Of course, you've been complying ever since.

Currently, you're making your way to the quad to eat lunch with her. If you hurry, you'll have about twenty minutes to spend with her before rushing off to your next class. It's not much, but you've been looking forward to it all morning.

"Hey!" you say, joining her on one of the more secluded benches.

As always, she's dressed to kill. She has a short white, sleeveless blouse on that shows off her slender shoulders. The top two buttons are undone, giving an excellent view of her cleavage whenever she leans forward just a enough. She's also wearing a short blue miniskirt and a pair of high heels that would normally have you drooling. (That's one of the many secret fetishes that she's been slowly drawing out of you these past few days.) But right now you can't seem to take your mind or your eyes off of the new piece of jewellery she's sporting. It's a long, silver chain around her neck that plunges deep into her cleavage. You can just make out a key on the end as she leans forward to kiss you.

"Is that what I think it is?" you ask in a hushed tone.

"What? This?" she says playfully and holds it up, letting it dangle from the end of a perfectly manicured nail.

Your cock swells uncomfortably in it's sleeve. You hurriedly motion for her to put it back away before anyone else sees it.

"Calm down, Sam. It's not like anyone else knows you're my chastity ****," she says, grinning.

You turn bright red.

"It's just to remind you," she says.

"Like I need any reminding," you say, trying to discreetly adjust the device.

"Miss White thought you might," she says.

"You talk like she's a whole other person sometimes," you say.

Her eyes dart around for a second.

"Um... anyway, I have some good news," she says.

"Oh, and what's that?" you say, letting her change the subject this time.

"Well, Megan called me last night and asked if I'd house sit for her while she's away at a volleyball championship for a few days. So instead of going back to my dorm tomorrow night, we'll have her guest room all to ourselves," she says.

You instantly grin from ear to ear. You've been working on figuring out how to get your roommate kicked out so you can bring her home to your place, but so far no luck.

"That's great," you say.

"Yeah, especially as much noise as you try to make," she says, winking.

Again, you blush. You glance down at your watch. Only a couple minutes left.

"So, I'll pick you up tonight," you say.

"Of course. And this time, bring a change of clothes," she says.

That night you pull up at her friend's house, ready to take her out to eat before having any fun. You park and walk up to the front door and knock.

As you wait for someone to answer the door you step back and take a look at the house where you'll be spending the evening. It's a modest two-story home, built in the same cookie-cutter style as every other house in this suburban neighborhood. In fact, if you didn't have the exact address, you'd probably never have found the right house.

And then the front door opens and such thoughts immediately fall heavily to the wayside.