Fuck fuck fuck -- I'm gonna get kicked out of the dorm if we're caught like this. Or expelled. And then I'll have to come up with some explanation to give mom and dad.... Justin watched under the door, gritting his teeth. Please just be another of the guys -- not a janitor, or a dorm monitor checking things out....

And then the feet appeared -- bare male feet, legs going up to the hem of a robe. Justin almost sighed in relief, then turned his face back to Alex, kissed her on the shoulder again, began to move his hips.

"Justin," Alex whispered, "what are you doing?"

"Shhh. It's just one of the guys," Justin whispered back. "If we don't make any noise, he won't know that we're doing anything in here."

"I don't know about this -- mmph!" The last was made as Justin covered Alex's mouth again and started to move fully back and forth in her. His hand slid up her belly, back onto her breast, cupped it, squeezed gently.

Alex heard the water turn on in the next stall and moaned into her brother's hand, thinking, Oh -- he's right in the next stall. And we're having sex right here... and Justin's -- oh! She shivered as he thrust in hard suddenly, pushing into her very deeply in this position, then moaned as he leaned forward and whispered into her ear. "You like that? You like me holding you like this, Alex? You're at my mercy...." As he spoke, he'd been drawing out slowly, and then he thrust in hard again, with enough force to make Alex have to brace harder against the wall.

"Let's see what you can take without making any noise...." He gave her four quick, hard thrusts, and Alex sucked in her lips and closed her eyes, trying not to moan. Grinning, Justin continued to thrust fast and hard, then licked his sister's neck, planted a sucking kiss on it. She squirmed and bit her lip, and Justin chuckled. "Remember, Alex, you can't make any noise. Not any noise at all."

A tremor started in Alex's thighs, and she bit her lip harder, determined not to make any noise even as she felt an orgasm starting -- but Justin seemed to feel her trembling, and his hand slipped down between her thighs and gently stroked her there. Oh! That's not fair! she thought even as the orgasm hit fully.

"I knew you couldn't do it," Justin whispered, and she twisted her head to give him a look. Taking Alex's cheek, Justin kissed her, slowing his strokes to do it. She returned the kiss, waited until he broke it.

"Only because you cheated!" she whispered then, and Justin chuckled, then sped up the pace of his strokes again, changing to a one-two rhythm -- a harder stroke, then a softer one, alternating.

"Didn't anyone tell you? All's fair in love and war...." Another tremor ran through Alex's body as Justin pinched her nipple again, twisted it just enough send a delicious pang through her. He drove into her at the same time, and Alex bit her lip and closed her eyes against the sensations flooding through her. Then she grinned and began to buck back against Justin, riding him in return.

She grinned more as that got a moan from Justin. Alex had to turn her head almost painfully to see his face, see him frowning as he tried to keep the moan down, and she moved one of her hands to cover her own mouth as she giggled -- but she kept rocking herself back onto him. "Looks like I'm not the only one who can't keep quiet," she whispered.

"You... are so damn sexy, Alex...."

"I know," she whispered back with a smile. "I make you want to pound me, don't I? You want to just go like a jackhammer until you can't hold back any more, don't you, Justin? Come on, big brother.... you know you want to. Come on... oh!"

Suddenly, he was going fast and hard, his hips smacking into Alex hard enough to push her forward on each thrust -- and hard enough to make noise. A lot of noise. "Justin -- I thought we were being quiet...."

"The hell with that," was Justin's response, and Alex had to giggle again. "Right now," he whispered hoarsely, "I don't care if the whole damn floor -- ohhhh!" A wordless moan was all he could get out then, and Alex felt his strokes become erratic and smiled, knowing that he was coming.

Justin's arms wrapped around Alex tightly as he stopped, then gave her a hug that was painfully tight. "Oh, Alex... that was great," he whispered.

"Oh, well... you know, just an average effort for me," she replied, tilting her head before she pushed her face forward and kissed Justin. It took a moment before he kissed back, and when he did, Alex opened her mouth just a little, inviting Justin's tongue in. He responded to her invitation and Alex sighed gently into it, ignoring the water running all over the two of them.

Breaking the kiss, they both looked at each other for a second, then laughed and pressed together. A voice from the next stall brought them back to reality -- "Hey! You got a girl in here, man?"

"No! No, I just... just thought of something funny." Quickly, Justin reached and turned the water off, then grabbed a towel and wrapped it around Alex. "On my feet," he whispered, and Alex was barely onto them when they were in his room. "I'll be right back," Justin said as Alex stepped off, and she nodded as he disappeared again.

Alex looked around the room and sighed. "Oh, hell... he has my clothes!" she said, then giggled, wondering how he'd explain that if anyone noticed. After taking a minute to dry off, she found Justin's hair brush, then set to brushing her hair. She'd been at that for a couple of minutes when a knock came at the door. Did Justin forget his key?

Making sure the towel was wrapped securely about her, Alex went to the door, opened it. "Ye -- oh. Hi." She didn't bother faking a friendly smile as she saw Beth standing there.

The older girl blinked in evident surprise at Alex, then looked past her. "Is... is Justin here?"

"Yes. He's hiding behind the door. It's a game we play. It's called, 'hide behind the door.'"

"What?" Beth blinked again, this time with a confused expression.

Wow. Really bright one we've got here, Alex thought with a roll of her eyes. "No, he's not here. Are you looking for more homework help?"

"Yeah... I've got this math problem here --" She pulled out a book and flipped it open, prompting Alex to raise a hand.

"Whoa. Not the math whiz here. That's my br --" Oh shit. What else starts with 'br'? Think fast, Alex.... "My brown-eyed boy. Justin. The math whiz."

"What?"

"You say that a lot. Is it like a tic?" Alex gave her best innocent look, fighting to keep from smirking.

"What? I mean -- no!" Beth frowned and looked up and down the hall. "Is Justin going to be back soon?"

"Maybe. But he's going to be busy all night. Very busy, if you know what I mean."

"Oh, well... I'll come back tomorrow, then."

"He'll be busy then too. In fact, he's going to be busy all week." Alex started to close the door, but Beth put her foot into it.

"Look... what is your problem? I'm not here to try to steal your boyfriend, okay? I just want to ask him a question."

Yeah, right. "Well, then... You've got the hots, now you'll have the nots, you were in love, now it you'll snap out of!" Alex snapped her hand forward, making the gesture to go with the spell -- but just as she did, Beth turned to the side -- and Justin stepped forward. Alex watched in horror as her spell hit Justin. Oh no. Oh no. Don't work!