Prompt- Justin and Alex in Alex's dollhouse … you can figure out the rest :P
"This is a very, very, very bad idea." Justin freaked, fumbling with the tiny doorknob of the tiny dollhouse.
"Your point?" Alex asked, yawning and digging her nails.
"Alex!" He held his hands up in the air. "We are in your dollhouse for crying out loud! What if mom gives it to someone again?"
Alex shrugged. "Then I guess we'll have to spend the rest of our lives as dolls."
"Alex!"
"Hey! We'd be together! And no one would know that we're brother and sister! That's a great idea. Thank you Justin!" She grinned at him.
"I wasn't giving ideas!" Justin yelled, "I was-"
He was cut off abruptly when Alex placed a hand at the hem of his shirt. Looking him in the eye, she pulled it off slowly, scraping his skin with her nails in the process. He hissed, but did not protest.
As soon as the shirt was off his chest, her mouth found his nipple.
"Gosh, Alex." he whined, tugging at her shirt.
She smiled in victory, licking his man-nipple, just the way he liked it, not paying any attention to his demand. Serves him right for being such a pain in the ass all the time. Pun intended.
He whined again, tugging at her shirt, now desperately.
This time, she obeyed, throwing it far away on the floor of the dollhouse.
His mouth latched on her boobs immediately, tugging, pinching, biting, torturing.
"Oh Justin!" she cried out in submission as his hands found their destination between her legs. "Only you can do this to me."
-The end
(A/N: yes, I couldn't bring myself to write a full-on smut. I'm not comfortable. So, this is the last M-rated thing from me. I'm back to emotional stuff again. Yes, I know I suck at smuts, no need to tell me :P)