It's supposed to be a surprise but sad panda doesn't allow for spoiler tags so... (´・ω・｀)

Raw

She needs to sit down and try a new tactic, like seducing him as a sister. After all that time, he's gotta have instinctual responses to her.

Base +6, Sanillam +13, soul saber +6, TheOneWhoScans +6, The14thNoah +11, Nobody_Know +7, Imsolo +6, AnEvilByte +6

That ending had me dying.

Base +6, Silver206 +7, Sanillam +13, soul saber +6, bunnygunny +8, Nobody_Know +7, Imsolo +6, Acerola +16, umumuchan +1

@Mizaz - and a brain tumor.

Base +6, akseyd +6, The14thNoah +11

Lmfao this was fun.

Base +6

I think we can reasonably call her a yandere.

Base +7, The14thNoah +11, hjerry +6, Imsolo +6, faggotop +6, AnEvilByte +6, PinguPrin +7

want to give this a male:ryona tag?

Base +5

Base +7

Imouto-chan uses "Hammer Time" to induce Amnesia on Kazu-oniichan (I seem to recall there was an anime series which had a similar plot element).

"Well Isn't That Cute? ..... BUT IT'S WRONG!"

Base +7, The14thNoah +11, AnEvilByte +6, PinguPrin +7

B-but wait, I mean, can't you just...

...I...

...bruh.

Base +6

Just how long has she been doing this for.

Base +6, TrueRune +6

Bonk, nii-chan is now my property

Base +23, Imsolo +6, sonnytag123 +10

Dude will eventually end up as a vegetable due to the daily brain injuries he receives, but I doubt she'll care as long as his dick gets hard.

Base +6

At this rate he’ll permanently regress to a baby state mentally...
Not that type of baby play you would normally want..

Base +31, AnEvilByte +6

And so the cycle begins anew.

Base +9

Wait...you were supposed to bonk the horny not get bonked by the horny

Base +7, AnEvilByte +6