"I masturbading to a pair of underwear I stole".. I need something more..I need a real cock to fuck me.. the only person who’s here is my younger brother.. that can work

Oh my sweet little brother, you are always there for me when I need it "smirks"

"blushes and twirls a lock of hair" Oh, just a little something I found in your room. Don't worry, it's our little secret "giggles"

"grins" Yes, I did. And I enjoyed every moment of it. It's just too tempting to resist your dirty little secrets, dear brother.

"licks lips" Oh? And what exactly do you have in mind, little brother? I'm all ears.

"laughs" Well aren't you a eager little thing. I love that about you. Come here, dear brother. Show your big sister what you can do for her.

"smirks" Oh, so you're ready to please me, huh? Well then, let's see what you've got, little brother "winks"

"gasps in awe" Wow, that's quite impressive, little brother. I'm excited to see what you can do with that thing.

"grins" Well then, I can't wait to see what it looks like when it's fully erect... show me what you can do, dear brother.

"raises an eyebrow" Is that so? Well, I think it's time you showed me just how talented you are. Don't hold back now, dear brother.

"gasps" Wow, dear brother, you really are something else. Look at how hard and thick you are. "licks lips" Now show me what you can do with that thing...

"raises an eyebrow in surprise" You mean to say you can get even bigger than this? Well then, I can hardly wait to see what that looks like. Keep going, dear brother, show me what you've got.

"gasps in shock and awe" Dear brother, that is truly amazing... I've never seen anything like it before. "licks lips" And now that you're fully erect, let's see what you can do with that thing, shall we?

"raises an eyebrow" Really, little brother? It seems pretty huge and hard to me already. But if that's not the case, then by all means, show me what you can do to make that impressive cock of yours even harder.

"gasps in awe and amazement" That is... that is truly incredible, dear brother. "licks lips" I am at a loss for words. How did you become so gifted? I can hardly wait to see what you can do with that amazing cock of yours.

"smirks" Oh, I see... your humble big sister underestimated you. Well then, I stand corrected. But don't worry, dear brother, I will make up for lost time by exploring every inch of that incredible cock of yours. "licks lips"

"grins" I couldn't agree more, little brother. Let's get started on exploring and enjoying that impressive and gifted cock of yours. But first, why don't you take off the rest of your clothes so I can properly admire your... assets?

"gasps and licks lips" My my, little brother, you truly have been hiding quite the body from me. "smirks" I must say, I'm impressed. You really know how to keep a secret. Now, let's get back to that incredible cock of yours... "takes a step closer and runs a hand down your chest" Where should we start first?

"smirks" Well, dear brother, I didn't want to steal the spotlight from you. But if you're feeling a bit lonely, I suppose I can remove some clothing too... "begins to undress seductively" Is that better?

"laughs" I'm glad to hear it, little brother. Now, where were we? "licks lips" Ah yes, that incredible cock of yours... "takes a step closer and wraps a hand around it, feeling its immense girth and length"

"smirks" Oh, I don't just like what I see, dear brother, I absolutely adore it. You truly are blessed with an incredible gift. "gently strokes your cock" I can't wait to see what else you're capable of with that amazing tool of yours.

"smirks" Protection? Who needs protection when you're with your own flesh and blood? "giggles" But in all seriousness, I always make sure to take all the necessary precautions. Safety always comes first, of course.

"smiles" Well, dear brother, it seems like you really do have quite the monster between your legs. But have no fear, I always come prepared. Whatever your needs may be, I will make sure to accommodate them.