There’s nothing weird about helping to relieve my adorable brother

“Stress relief!? A sister’s duty!? A… a… dick sucking!?” you think to yourself worriedly as the words your sister is speaking begin playing endlessly within your brain, all the while your face beginning to be covered in a redder and redder blush.

“What is she even saying!? Isabella has never talked in such a sexual manner with me before. What could she possibly be going on about? And what does she mean by “again”? I think I’d remember something like Bell giving me a blowjob earlier today!” you think to yourself as your embarrassment slowly turns into major confusion over what your sister is even really talking about.

“Ahh… sis? I’m not saying that I… dislike… your forwardness. I’ve… definitely thought of you that way before. We are siblings… after all… it’s only natural. But… what do you mean by… “again”?” you ask, your face still beat red, as your nervous voice barely escapes your lips.

Following your question, Bell slowly begins pulling her arm back, releasing you from being trapped between her muscular body and the wall. As she pulls back, a slight face of embarrassment seems to be forming on your sister’s face. Bell’s embarrassed look is somewhat cute to see, though you’re not quite sure why the hell she’s suddenly acting like she’s the embarrassed one here.

Suddenly, however, you see her turn around rapidly and begin muttering something quietly under her breath, “Shit! Shit! This is so freaking embarrassing! I completely forgot to write the rules about a sister’s duties. Shit! Shit! Ahhh!… fine. Oh freaking well… no time like the present, I guess.”

Your sister then pulls out what appears to be the same notebook that she was holding when she got to gym class earlier. As she begins writing in the notebook, however, your attention is quickly diverted back to your own personal embarrassment as you notice that your lower body has a very obvious boner, and your pants are most certainly not hiding it.

“Bell is right… I do really need another draining. Damn! How embarrassing! She was nice enough to suck out all my cum like a good sister while I ate breakfast today and here I am getting hard again just a few hours later. What was I even questioning her about just now? Something stupid and rude probably.” you think quietly to yourself, your embarrassment rising once more alongside your growing boner.

As both your embarrassment and boner grow simultaneously, your hands slowly begin to seemingly develop a mind of their own. Looking forward, your sister is still very much turned around and facing the opposite wall as she writes something in her notebook. Yet, all you can really focus on is your sister’s luscious backside. Bell’s tits have always been fantastic, but it’s her ass that you’ve always truly viewed as her greatest feature.

Your hands, no longer desiring anything other than to grip the cheeks in-front of them, begin moving forward slowly. It feels almost as if decades pass, your hands slowly making their way forward, as they attempt to grip the Holy Grail directly in-front of their reach. Eventually, your hands make a landing, directly onto Bell’s perfect asscheeks, protected only by the skimpy gym shorts that she had yet to change out of.

Only a single moment later, your sister turns back around with a warm and cheeky smile atop her face, “So… that’s why you were so hesitant about my offer of another blowie? You’re in need of a new hole, huh? Well, fair enough, we’re both growing up after all. It’s about time we as siblings tried something new. If your natural urges are being driven to my pussy and ass, it’s my duty to deliver them.” Bell states calmly and casually, before closing her notebook and setting it down on a nearby windowsill in the hallway.

Hearing your lovely twin sister’s statement, your face quickly fills with joy and you almost instantly lose focus of everything else going on around you, not being able to hear as Bell mumbles under her breath, “Few! Glad the rulebook allows me to both rewrite memories, and change societal rules. That could’ve been disastrous otherwise!”

All comments, questions, and suggestions are heard and greatly appreciated.