Sarah demands your ass

As you simply kneel there, too tired to move, you can do nothing but stare up in awe at your little sister who had just moments ago used you as little more than a living sex toy. While that experience had used up almost all of your energy and left you completely exhausted, Sarah was still practically glowing with energy. What's more, even though she had just blown a massive load of jizz down your throat, her energetic young girlcock was already standing erect once again.

Sarah looked down at you lovingly before gently running her slender young fingers through your hair and leaning in to kiss you on the lips. In your current exhausted state, you could do nothing to resist as your sister **** her tongue through your lips and effortlessly dominated your own with it. And truth be told, even if you did have the strength to resist, you wouldn't have wanted to. Sarah was being so forceful now, and the way she was dominating you and using you as nothing more than a tool to pleasure herself with was turning you on like nothing you had ever experienced before. As humiliating as it was to admit it, you couldn't deny the truth any longer. You honestly really did enjoy being your little sister's bitch.

Just then, Sarah broke the kiss and looked you in the eyes with a deviously lustful grin on her face. She kept a hold on your hair with one hand, and with the other she reached back behind you and sunk her fingers deep into the soft skin of one of your ass cheeks. You yelped out in surprise as you felt your little sister grabbing hold of your ass and then gently kneading the cheek with her fingers.

"Doug, your mouth was amazing, but now I think that I'm ready for something better. You're still a virgin, right? Let me fix that for you. I want to stick my dick so far up your butt that you'll never want me to take it out again." Sarah said, licking her lips in an incredibly predatory manner.

Now you were incredibly nervous once again. As much as you had come to love being dominated by your little sister, were you really willing to let her take your virginity? That was something special that you were supposed to be saving for the girl you wanted to spend the rest of your life with.

As you're busy thinking about this dilemma, your little sister begins taking the initiative and walks around behind you. She grabs your ass with both hands and spreads your cheeks apart. You then feel her warm head poking against your sphincter and realize that now is your last chance to make a decision before your little sister makes the decision for you.

Making up your mind about this, you decide to...