Incest Thread-False Alarm (Bon-Bon) by AnalplugAnon

>"Anon! Anon!"
>Your sister Bon Bon bursts into your room, rudely interrupting your fap session.
>Her shirt is missing, and her breasts jump and jiggle as she makes her way over to you.
"Bonnie?! What the fuck! G-get out!"
>You let go of your cock and scramble to find a blanket to cover yourself with, but you aren't fast enough.
>Bon Bon leaps onto your lap and hugs you tight against her.
>"Anon, help! Oh, god, Anon!"
>Bon Bon's shoulders heave as she sobs loudly into your neck.
>"I... I think... I was t-touching my b-breast... an-and I th-think I felt a l-lump!"
>Your blood runs cold.
>Cancer?
>Your sister might have cancer?
>No.
>Please, God, no.
>Bon Bon pulls back and grabs your hand, which she pulls onto her left breast.
>"Feel it! Feel it, Anon! P-please, I... please, just t-tell me if you feel it too!"
>You do her one better.
>You grab both of her breasts and caress them, squeezing the tit-flesh gently all over.
>In your panicked state, you even tweak her nipples as well; you figured that you can't be TOO careful, and what if she has NIPPLE cancer too?!
>You aren't thinking clearly.
>You keep your eyes locked on her tits, trying to make sure you cover every inch of her chest.
>A small part of your mind notes that she has a very nice pair; not too big, not too small, and nipples that are just the right size to suck on.
>"Y-yeah, just like that."
>Oh good; you're doing it right.
>"Keep it up, big brother..."
>How long does it take to check for lumps?
>"Oooh~ So rough... naughty..."
>You slow your squeezing and pinching and slooowwwly look up at your sister.
>She has the lewdest expression on her face; heavy-lidded eyes, biting her lip, and a nice heavy flush on her cheeks.
>"Why'd you stop?"
>Fuck's sake.