Katy slinked toward her brother, her body glowing from sex.
“Jesus, sis, Mom and Dad are gonna kill you,” Cal said, his eyes jumping from his sister’s ample breasts to her neatly trimmed pussy and back.
“Only if they find out,” she said, wiping a drop of dog sperm from the corner of her mouth. “and you’re not going to tell them, right little brother?” She placed her hand on the bulge in his pants and squeezed.
“It all depends, sis,” he said, grabbing his sister’s hand as she massaged him and shoving it down the front of his pants, “on what you’re willing to do to stop me.”
Katy’s hand was now on her brother’s erect cock, and the feeling of it in her hand turned her on incredibly. She imagined herself being fucked by him like a dog, to have her own little brother make her his bitch. She tried to keep herself from thinking such thoughts about her own sibling, to get way, but the look in his eye told her what he wanted, and she was in no position to refuse.
“Let’s go up to my room, bro, just in case someone comes home.”
She pulled her hand from her brother’s pants, picked up her robe and walked upstairs. Cal was just a few steps behind her, and she could practically feel his eyes burning into her ass and pussy as she went up the stairs.
They got into Katy’s room and she turned the lock. As Cal began to fondle his sister’s breasts, he lunged towards her and stuffed his tongue forcibly into her mouth. She liked the fact that Cal was a terrible kisser, that he was showing himself to have no lovemaking skills. She wanted to be fucked and used and not pleasured, just treated like the bitch she was. Almost like a dream, or as if it was calling to her, she remembered something in her bag. She pulled away from Cal for a second.
“Just a sec, bro,” she said, and turned to open her case. Cal came up behind her, undeterred, and groped her breasts, his hands blundering down her body toward her pussy, as he slipped a finger inside her wetness.
There they were—the collar and dildo from her dream with Clara—so it was real! She picked up the collar and put it on. A second ago she had been merely turned on by the idea of sex with her brother, but now her head was spinning with animal lust. She jumped on him and started kissing him violently. He jumped back a step, surprised by Katy’s sudden aggressiveness.
“Fuck me, Cal,” she screamed. “Fuck me like a dog!”
Cal wasn’t used to girls acting this way, so he stood there, stunned. Katy got down on all fours in front of him and started sucking on his cock, hard and fast.
“Fuck your bitch of a sister, Cal,” she screamed at him, saliva dripping from her mouth. “Fuck her bitch cunt.”