"Shhh... if anyone knows you're in here, we're going to be in major trouble." Justin's voice was just a whisper -- so quiet that Alex could barely hear him, even with him right behind her.
She brought up her hand to stifle a giggle and nodded, then whispered back. "How're we going to get back out -- ohhhh...." That last was prompted by Justin's hands on her, gliding across her skin, moving up her back, onto her shoulders, then pulling her hair aside for him to kiss her where neck and shoulder met.
Putting her head back, Alex let hot water run through her hair and smiled. This was so hot, the two of them in the shower together. The fact that it was the boys' shower on Justin's floor made it even hotter, even if the showers were individual stalls with doors. While no one could see their naked bodies without bringing their head down to look under the door, anyone walking by could see two pairs of feet. Of course, at six in the evening on a Saturday, chances are no one would be walking by, but it still felt deliciously exposed.
Justin put his hand on his sister's cheek, turned her face around far enough for him to kiss her, still standing behind her, his other hand sliding around onto her belly, then up to cup one breast. He squeezed it lightly, then moved his fingers to pinch her nipple slightly between them.
Alex gasped into the kiss, began to move her hips back and forth, teasing Justin. She felt his erection against her, wanted -- no, needed it in her. But not just yet....
Instead, she turned around and pressed her naked body against him, front to front, then kissed him back, wrapping her arms around his torso, reaching her hands up to feel the muscles of his shoulders. Justin took a step forward, pressing Alex between him and the wall. With his right hand, he took hold of her left wrist, lifted it up and pinned it against the wall, looking down into her eyes.
"Mmm... you look delicious. Nice and wet and slippery...." Justin ran his other hand up her side, across her chest, her neck, grasped his little sister's chin between thumb and forefinger. "You know what I'm going to do to you, Alex?"
She shook her head just slightly -- all she could move it, pinned as she was, at the same time staring into Justin's eyes. "No. What are you going to do to me?"
He kissed her then, pulling down on her chin and forcing his tongue into her mouth. Alex moaned into the kiss and squirmed, making her body move against Justin's, feeling tingles up and down her body. I love it when he's like this. His hand came off her chin, moved down. Continuing to kiss Alex, Justin slid his hand between her legs, feeling there until he found her entrance, then slid across it, teasing her.
Breaking the kiss, Justin grinned. "Anything I want," he said, moving his finger back and forth, rubbing Alex on the outside and prompting another moan from her.
"I'll let you. You can do whatever you want to me. I'm yours."
Smiling at that, Justin kissed her again for a moment, keeping it a surface kiss this time. "I know," he answered, then moved both his hands, placed them on Alex's thighs, lifted her. She slid up easily, her wet back against wet tile, and he brought her up to where her breasts were at the level of her mouth, took one nipple in his mouth and sucked.
Alex whimpered, feeling totally dominated and loving it. More, she was high enough now to see over the door of the shower stall -- and if anyone walked by, they'd be able to plainly see her face. The thought of getting caught like that excited her, and she shivered a little, then clamped her mouth shut to keep from moaning loudly as Justin moved one of his hands in and stroked her again. A shiver went through her, and she felt the contractions of a small orgasm.
"You like that?" Justin grinned, pushed one finger into her. Alex nodded jerkily, not trusting herself to speak. Letting her back down, Justin withdrew his finger stepped back, roughly turned Alex around. Automatically, she brought her hands up, bracing herself against the wall as her brother slid his hands up and down her wet body, feeling her all over.
As he did, he kissed her neck and shoulders, then nipped her shoulder, prompting a little 'ah' of surprise and pleasure from Alex. His hips were against her butt, and Alex felt his erection pressing against her, started to move her hips against him. "Please... please put it in me. I need you, Justin. I need you so bad...."
He moved his hand down against her butt, gave it a smack -- more symbolic than anything else, as he didn't want to make too much noise, but even that was enough to excite Alex still further, drawing a moan from her. "Oh, Justin... please...."
Justin slid a hand up onto Alex's breast, pinches her nipple between his thumb and forefinger, rolled it slightly. "Please what?"
"Do me... put it in me. Please."
"Well... since you ask so nicely... stay right there." Justin moved back, away from Alex, squatted down quickly where the soap, shampoo, and conditioner were, picked up the condom that was with them. It took him two tries to tear it open, between wet hands and hurrying fingers, but then it was open, and he took it and unrolled it onto himself, looking at Alex posed against the wall, her hips at an inviting angle.
Stepping back behind her, he felt for her entrance with his fingers, found it, moved himself into place. Then he pushed forward, and Alex shivered and moaned again, feeling the sudden fullness as he entered her. She was very, very wet and ready, and he slid in easily, until his hips were pressed against her and he was completely in her.
"Oh... oh, Justin...." Alex moved her hips back and forth, trying to work herself on him, but her position was too precarious for that. And then he was moving, one hand on her shoulder, the other on her hip, taking slow, long strokes. It was different from how he usually did her, not as intense, but it still felt good.
He kept that pace up for a few minutes, then sped up, growing bolder as they remained undiscovered. The faster, harder strokes drove an already-excited Alex over the edge, and she moaned loudly with her orgasm. Immediately, Justin moved his hand from her shoulder to her mouth, stifling the sound. Alex moaned more loudly in response, her orgasm intensifying at the feeling of being controlled so.
And then Justin suddenly stopped, all the way inside her. Alex started to turn her head, opened her mouth to try to ask what was going on -- although with Justin's hand on her mouth, she wasn't sure how much good it would do. Then she heard the outer door of the bathroom closing and froze as well, realizing what was going on.
They held their position like that as they listened, the water streaming down onto Justin's back and shoulders, trickling down across him and onto Alex, running down both their legs.
Both their heads were turned to watch under the door as they listened to the footsteps. No, no, no, Alex was thinking, don't turn this way. Don't be here to take a shower. Just brush your teeth, or go to the bathroom, or whatever else, but don't come this way!