Is there an actual reason why I shouldn't fuck my sister?

Is there an actual reason why I shouldn't fuck my sister?
My sister loves me, literally, in the romantic sense. We get very physical sometimes in private but have not had sex, yet.
I feel like there is no real reason why we shouldn't just do it at this point. It just feels so natural, like we were supposed to be doing it already. She is pretty much the perfect partner, I would even say she is my best friend. She seems to be built to be the optimal mating partner for me too, just the right height and stature compared to me, huge tits and a cute tiny butt. I guarantee even our genitals are made to fit together, just the right size and shape, like a hand into a glove. She's pretty much the perfect woman in every way, for me.
Why shouldn't I do it with her? Have I just been corrupted by incest porn or something? Discuss.

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I don't know but I'd fuck Lucie Wilde

shes just another human, as long as you dont breed its literally fine lol

I made a thread about this earlier too, but it got deleted because I was asking advice which belong to /adv/, sorry mods, my bad.
I am not asking for advice, just want to discuss incest.

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well you can never have children with her and your relationship has to remain completely private to everyone so it can never develop into marriage but beyond that theres not much

If you're both cool with it then go the fuck ahead. Stop caring about the morals of random people who don't wish the best for you.

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My sister looks a lot like Lucie, body not face tho

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This is how I feel currently. It doesn't feel morally wrong to me in any way I can spell out logically.

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As far as I know, even having kids isn't that big of an issue. It mainly makes hereditary problems more likely to be inherited. If we aren't carrying anything bad in our genes, there is no downside then?
Inbreeding is bad if it's done for longer, generation after generation, when the problems can compound. A single act of inbreeding is not very likely going to result in problems.

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Gonna repost my situation from the previous thread:

My sister uses me for emotional incest. She likes to pretend I am her boyfriend in public, and does stuff with me privately that a bf+gf would do. Like we watch netflix at her place and she casually comes to cuddle, like it's normal. She constantly compliments my body and face, and says how hot I am. Around people we know, she acts totally normal, like we barely know each other.

She is very clearly interested in me "romantically" I guess, and has openly said that many times, but I'm not. I'm however extremely interested in her sexually. She is very very hot, so hot that I dream about breeding her and getting her pregnant. I think me being so attracted to her physically has made her think I like her romantically more than I really do.

We already play around with each others bodies. I grab and squeeze her tits and ass while we cuddle and stuff, she likes to grab my ass or arms and sometimes kind of taps my crotch if I have a bulge in my jeans or something. Sometimes things get very spicy, but she suddenly decides that it's not going to happen. Closest was when she was wearing a loose dress that was very revealing. I lifted her dress up and played with her ass. She was really into it, giggling and hugging me. I turned her around and slid my hand down her belly to her panties and pretty much grabbed her pussy with my whole hand. I kind of played with her clit and she was just giggling and saying "doooon't~ teehee~". She put her hand on my inner thigh. But just as she was getting excited, she suddenly stepped away and that was it. She acted like nothing happened after.

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how will your kids feel about their parents being brother and sister? how will your parents feel about having inbred grandkids and degenerate children? how will you avoid getting charged for incest by the police?

What a blueballing hoe. Sorry fren but she probably does the same with 10 other guys

Well we could easily just explain to others that the kids just aren't mine. Maybe my sister got pregnant with her non-existent boyfriend who left town, leaving her a single mom. Her amazing brother decided to help raise his "nephews" or "nieces", what a great guy. Kids wouldn't have to know and I could easily be like a dad to them the same, they'd just call me uncle lol. Could even let them know the truth when they're old enough.

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>Is there an actual reason why I shouldn't fuck my sister?
No. There is no actual reason, as long as you can both consent and use birth control. There is nothing immoral about incest, it's just taboo because normalfags are incapable of accepting new ideas.
Check out this debate by Destiny. He makes it pretty clear here that there is nothing wrong with incest.
youtube.com/watch?v=W9VmmJ9iz8I

Thanks, I'm gonna check that out!

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Why don't you ask her why she stops ?

Why do people shit on Lucie so much? I don't find her face unattractive.

Just be prepared for this in the future

Fuck I'm dying lol

> it's just taboo because normalfags are incapable of accepting new ideas.
Why are you coomers so fucking stupid.
Incest is the old idea. It was widely practiced up until, what? The 16 century? Maybe more. It was moral busybodies from the abrahaimic religions that TRIED to put a stop to it and for a good reason. Inbreeding creates weak bloodlines. True this is easily fixed within a couple generation by introducing new blood but there are times when you can't afford waiting for 50 years.
That and sex just for cooming is plain degeneracy.

maybe it has more to do with her personality / acting. she's the deadest fish that ever died. if she was a sexy whore who could deliver horny body language and voice I'd overlook her sad deer face.

When I said new ideas I meant ideas that are radical. Bit of poor wording on my part, but there is still nothing wrong with incest. In developed nations we have great access to contraception and can avoid having kids. Incest in and of itself isn't wrong.
>That and sex just for cooming is plain degeneracy.
How? What's wrong with sex for pleasure? It doesn't hurt anyone, violate human rights, or make society worse.

>or make society worse
ooh, you overplayed your hand with that one. you had an easy win otherwise.