sisexual

SISexual.

A person who wishes to have sex with their sister. And only her.
Dude, I think he's into incest.
-Yeah, he's sisexual.
by JoMan112 August 05, 2010
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Sisexual

When a transgender and the regular format of human makes interactions.
by TransStr8 October 30, 2020
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Sisexual

When one is so drunk that he (or she) will have sex with anyone and anything regardless of gender, race, or age.
He is not bisexual he is sisexual.
by infiniteloop91 June 14, 2009
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Sisexual

when a person loves 7 different things like inanament objects that are randomly chosen off the street to get kids made fun of for being so weird and the kids being weird by making out with those inanament objest or just being forced to.
That kid loves boys, girls, plants, pennies ,signs, paper, and plastic.
He's so sisexual when he looks at those items like a lover.
Why is ryan so sisexual when he looks at those plants?
I love those pennies, plants, girls,boys ,papers, signs, and plstic things as much as the other................maybe i should just make out with them.
I'll make that kid make out with that plant becasue it's perfect for him.
by Joe septer July 01, 2006
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Sisexual (Si)

Sisexual: When you like your sex and your opposite but mostly your opposite. It’s like straight mixed with bisexual.
Catherine : I’m Bi but I like guys a little more than girls...
Julie: So your Sisexual (Si)?
Catherine: Yes!
by UrbanGirl2005 March 29, 2018
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Sisexual

If you have a sincere and heart-burning love for Simon Morris Lloyd
My friend is sisexual, i’m so proud of him!
by DEBBY.LEBBY.LLOY_LLOY May 30, 2022
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