"... a CEO"

"She always had the looks and the brain." you continue. "And also the muscle, I guess. She works out a lot to stay in good shape. But more importantly, she's always been good with computers and it turned out she was also good managing a business. She made a fortune in the Silicon Valley, started her own company and now she's a millionaire and..."

"Tee-hee." Carrie laughs with an exageratedly and probably purposefully dump grin on her face.

"What's so funny?" you ask, frowning.

"Silicon Valley... Quite ironic if her boobs are actually natural."

You try not to pay attention to the remark and resume to your little presentation. "Anyway, she's rich and powerful as fuck, so maybe we shouldn't mess with her. She doesn't care about family, never helped us when we needed her despite all her money and has even treated us like shit on several occasions."

"Okay, but what if we pretended you never warned me about her and we focused on the part where she's sexy as fuck, has breasts literally the size of watermelons and has been your wet dream since teenagehood?" Carrie replies with a crazy smile.

"Uh... Yes, it's... Hard to forget this part."

"Tee-hee... Hard. I guess you are."

Indeed, you are, you realise. Just talking about it made you reminisce all the fantasies you had about fucking your bitch of a sister in various situations and positions, especially with her grown up body.

"So, why do you hesitate? I want to help you realise your fantasy no matter what, and it's the mother of all your fantasies. Or the sister." she smirks. "Tell me, what would you like to do to her?"

"Carrie, I don't think we should..."

She suddenly turns serious. If stares could kill, she would have a body to dispose of right now. "Tell. Me." she repeats.

You start blabbering until you are once again able to formulate a proper sentence. And then you start talking and can't talk anymore. "I want to dominate her... Humiliate her, even. I want to have her tied up, covered in my cum, especially her huge tits. I want to see them filled with sticky white juice while her chest slowly heave up and down as I exhausted her by fucking her too hard. I want her to give me blowjobs, and obviously titjob. I want to take her doggystyle and impregnate her, and also fuck her ass. And I want her ruined. I want her to admit all the ways she wronged our family. I want her to lose her money, her position and the esteem of her peers and her employees."

Your girlfriend waits for you to take a pause in your list and embraces you, pressing you against her chest while rubbing your back. "There, there." she whispers. "I'm proud of you. It was really perverted and hot to picture. Now, we have to decide how we will achieve this."

"You didn't listen to me! We can't! She will destroy us!" you protest, attempting to back away.

"Pfff... Nonsense. Nothing is impossible when I'm horny enough. Now, tell me, what kind of guys your sister usually fuck? It would help a lot if you could become closer to her fantasy."

You hesitates. "Well, there's a difficulty here..."