Try to make a run for it

"Come on Doug, take your pants of." Crystal speaks to you without even looking back.

"No Thanks, Crystal. I have some homework to take care of, and I'm really tired. Maybe I could join you guys next time." You try to find an excuse, taking steps back towards the door.

"Oh Come on. What kind of homework could you have. There are three hot girls here who want to play a game with you and you are trying to get away." Crystal said exasperated

"Come on Crystal, don't be such a hard-ass. Let your brother go, maybe he can come back when he does his homework. Besides we'll be here the whole night." Lin said winking at me.

"Bah, get out. I thought you were more fun than this little brother. " Crystal exclaimed and turned her back to me.

Immensely relieved that I managed to get out of that one I made my way back to my room. I did indeed have some homework to write. About half hour into writing the homework there was a knock on your door.

"Come In" I said, and to my surprise it was Lin,

"I told your sister I would come to see how you're doing with your homework and maybe help you. I am the best student of my class you know." She was even wearing pants this time, though that did little to help hide the monster in her pants. her erection was so thick that even in it's flaccid state it was rivaling her thigh for space in the track suit, and the outlines of her shape and the cock-head were clearly visible through the the thin material.

As she walked towards me, her cock swung inside the pants like a pendulum sending shivers of excitement though my body. As she got closer you could even see the outlines of her balls, a large swollen orange behind the thick appendage.

"Doug, DOUG!" She had to repeat my name before you realized you were staring at her package, somehow the track suit made it even more alluring than when she was naked.

"Am I distracting you somehow." Lin asked, placing a palm over her lips and looking down at her package, and then back up at your eyes, winking knowingly.

"No, No.. I.. I'm just in the middle of something." You managed to stammer.

"Sure you are Doug. So let's have a look at this homework of yours." She spun my chair around so you were both facing the homework. You could feel her warm pulsing presence against your shoulder as she pressed into you, while looking over your table.

"Hmm.. Oh yesss... That's seems quite complicated Doug. Oh yess." She purred gently moving her body against your shoulder. You could feel her growing, harder and longer against your arm.

"Oops.." She exclaimed, with false surprise, as her now almost fully hard erection popped free of your shoulder and sprang free in front of you. She seemed absolutely massive, stretching the thin fabric to near transparency. She was probably 15" long, and thicker than your forearm.

"Dear me, I have no idea how that happened Doug. I swear it was never my intention of interrupting you homework in such an inappropriate way." She was making the most modest of sounds, but her hand was gently caressing the gigantic pulsing bulge, as it was threatening to tear the pants apart.

"I don't know Doug, I think..."