When sisters share a baby daddy their offspring would be sister/brother/cousins.
Or if a brothers have the same baby mama their offspring would also be sister/brother/cousins.
We not just cousins, we sister/brother/cousins.
1- Step-second-cousin's spouse.
2- Spouse's step-second-cousin.
step-second-cousin-in-law.
My sesqui-first cousin-nephew is a good boy.
Someone who, in relation to others, has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents and nine great-great-great-grandparents in common.
Irregular-quintuple-fourth-cousin.
Daughter of their maternal first cousin’s child with the paternal first cousin’s child or double-first cousin’s granddaughter.
My double-first great-cousin-niece is a good person.
1- Great-great-great-grandpibling's great-great-great-granchild.
2- Living being that has zero parents, zero grandparents, zero great-grandparents, zero great-great-grandparents, zero great-great-great-grandparents and two great-great-great-great-grandparents in common with other living beings.
fifth-cousin.