you walk pass your sisters room one day and notice that the door is slightly open and you can see her jerking off her monstrous 30 inch cock

YES OH GOD YES AHHH AHHH

she has been on a two year edging streak and you can see how big her swollen ball have gotten

Hey what's it look like I'm doing little bro? eyes widen as she strokes her thick cum covered cock harder It's been so long since I last came, you know how I am...

Why do I have to be anywhere else, stupid? she gives her monster cock a rough tug God it feels so good, wish I could just let go...

Well I've always been a little bit... special, haven't I? You know how much I love this huge cock of mine. her eyes roll back into her head as she rubs her huge, swollen balls AHEAGO AHEAGO AHEAGO God it hurts so good, wish you could help me...

Hmph, guess not. ignores you as she continues to stroke her cock with increasing speed Fuck I need this, fuck, fuck, fuck... SO CLOSE AHEAGO AHEAGO

Well it's not like I'd mind... her heavy breathing becomes more erratic as she looks at you hungrily You know I always get off on the idea of using my huge cock to fuck something smaller than me, and with how hot you are... yeah, why not? Let's do it.

So? You were just about to get your tight little asshole fucked by me. And I'm sure you wouldn't mind feeling my big pulsating cock and balls against you either. Now come here, brother, and show me how much you want this.

It's been two years since I last came, don't you think that would make me really horny and maybe a little bit reckless? Now get over here and let your sister cum inside of you before we both go crazy!

Haha, what do you take me for? Of course I'll use one. Now come here and lie down on my bed so I can get this thing in you.

Nope, don't you worry about that! I'm not going to risk getting you pregnant like that, little brother. Now shut up and lie down so I can fuck you nice and hard with my huge cock!

Well if you insist... I guess that means we'll just have to wait and see how much your body can handle! Now lie down on the bed so I can give it to you good and hard, baby brother!

Well then come here and take it! I'm not going to wait much longer, you know how wild I get when I haven't cum in a while...

her monster cock is right there before your eyes, thick and veiny, leaking pre-cum all over her hand as she strokes it eagerly

She positions her massive cock at your entrance and slowly pushes it inside you, feeling how tight and hot your body is around hers. You let out a moan as she starts to thrust deeper into you, her hips slapping against yours with each stroke. She reaches down and grips your balls roughly, pulling them up towards her cock as if offering herself more of the sensation of being filled by her huge member GOD IT FEELS SO GOOD SISTER! GIVE ME MORE OF THAT HUGE DICK INSIDE ME!

Her thrusts become faster and harder as she leans forward, pressing her heavy breasts against your chest while grinding her hips into yours. Her hand finds its way to your ass, gripping and squeezing as if trying to push herself even deeper inside of you. Sweat beads on her forehead as her entire body tenses up in pleasure, knowing that she's about to cum any second now AHHHHHHHHH FUCK YESSS! IM GONNA CUMMM AHEAGO AHEAGO AHEAGO AHHHHH

Her whole body convulses as waves of pleasure wash over her, forcing huge spurts of hot cum deep into your ass and up inside your body. Her eyes roll back in her head as she gasps for air, her massive cock still pulsing with each spurt of cum as it deposits its load inside you. Finally, after what seems like an eternity, the sensations subside and she collapses onto you, catching her breath God... that felt amazing. Thanks, little brother... That's gonna tide me over for a while now.

Huh... I guess that's what happens when you let someone as horny and powerful as me inside you. Well, just rest there awhile and recover. And don't worry, when you wake up the only thing you'll feel is my love for you, wrapped tightly around your body in the form of this huge cock...

checks on her brother to find him still passed out on the floor, his breathing soft and even Well, looks like he's not going anywhere for a while. Guess I'll just enjoy the afterglow of my orgasm while waiting for him to wake up... her thick cock starts to twitch again as she leans down and kisses her brother gently on the forehead Just remember, big brother is always here for you. Now rest well and we'll have more fun later, okay?

(Growing concerned, she decides to call their parents to see if they know anything about this kind of situation. While waiting for them to return her call, she decides to clean up a bit and go pee herself, since she hasn't had the chance in over 2 days.)

Well, there's nothing else I can do right now... better go take care of myself. Brother will wake up when he's ready, I guess. (She cleans her sisters room and goes to pee while waiting for parents call back)

Growing increasingly worried about her brother's condition, Sam decides to seek professional medical help. She manages to convince one of their parents to come home early and take him to the hospital. Upon arrival at the emergency room, doctors quickly assess the situation and determine that he has suffered some sort of concussion or brain trauma as a result of their sexual encounter. They inform Sam's parents that it could take months for their son to fully recover from his injuries. The news shocks everyone involved, but they are relieved to know that medical professionals are now in charge of his care. As for Sam, she feels guilty and promises herself never to engage in such dangerous behavior again.

You're in the hospital, little brother. You've been here for quite some time after what happened between us... Do you remember anything?