Kierncest 

When your boy Kiernan says he wants to fuck the female Snapchat version of himself.

“Bro, Kiernan, you wanna fuck the girl version of you?? That’s Kierncest my guy.”

Kierncest by Xx_ThotMaster69420_xX May 11, 2019

Kincest

kin·çest
Noun
Adjective: Kincestuous
Verb: Kincesting

1. When two or more people who "kin" each other engage in sexual action.
2. When two or more people, one of whom is kinned by the others, engage in sexual action.
3. When two or more people who kin the same character engage in sexual action.

Person 1: I can't believe we're finally doing it
Person 2: I feel like Kanaya Maryam when Rose kissed her
Person 1: Wait, you kin Kanaya too?
Person 2: Yes..?
Person 1: Does...Does that make this kincest?

Kincest by deadlyAdder July 22, 2019

kincest

Two people involved in a romantic or sexual relationship. They aren't blood related, but are so close in kinship or friendship that they might as well be. This could include step-family, family friends, god-siblings, etc.

Person 1: "Andy, just get with Sandy already. What are you waiting for?

Person 2: Ew, man! We've known each other since the first grade. That's like kincest.

kincest by Cicinotouch December 26, 2013

kiereston 

Just beautiful like wow, She amazing and awesome, She loyal and trustworthy and a awesome girlfriend as well as a best friend she is caring and somethings is scared of the weather and probably uses a iPhone and likes someone that has a first name that starts with J

Omg I want a Kiereston

kiereston by Secert Era hornet May 14, 2017