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1.
When a girl and a guy have sex with the the same person that the previous one had sex with.
Example 1:
Girl: Me and John are Pagina Cousins, since we had sex with the same person.

Example 2:
Boy: Me and Jill are Pagina Cousins, since we had sex with the same person.
by YoungStallion94 August 03, 2011