Why is there an entire genre dedicated to fucking your own sister?

Blame only children and their degeneracy.

>>148245373
So it's only kids?
I thought this was targeted at adults?

>>148245472
my anon cannot be this stupid

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>>148245341
Why wouldn't there be?

>>148245373
Get raped.

>>148245341
Because it's nice.

>>148245341
Why not? If you had a smoking hot sister, wouldn't you want to fuck her?

>>148245341
None of them are my own sister

>>148246037
>>148246076
>>148246125
Stop it

Why not? It's good for my heart and my dick.

>>148246191
No anon you're not allowed to fuck you family

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>>148246179
>not wanting to do forbidden sexy things with your teenage twin imoutos

>>148246179
Are you on something?
You don't seem to want to discuss anything` just preach from your mountaintop.

>>148246313
You can't tell me what to do, faggot

>>148246313
true, except your sister

>>148246313
Says who?
If it's you, I'll smack ya in the gob until your begging me to do it.

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>>148245341
Because it's the purest form of love, duh

>>148247526
Literally everyone says that about some sexual combo.

>>148245472
Jesus anon, you can't be this dense.

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>>148247635
So what? Sibling incest is the purest of them all!

>>148247781
The "So what?" is you aren't making a productive effort in convincing me; also, OP is really a homosexual.who wants to slam his brother.

>>148245341
Because most nips are solo children and thus they have no concept of sisters being filthy loud stupid bitches who DESTROY bathrooms.

>>148248143
>Because most nips are solo
And that's a wrap.

>>148245341
>sister
That word is enough to get me hard as fuck. I blame Oreimo and Yosuga no Sora