Just when we thought there was no twosome in the whole world cuter and sweeter and hotter than Santana (Naya Rivera) and Brittany (Heather Morris) Quinn (Dianna Agron) had to come along (yeah, we know what we said) and make us question everything.

In Glee Episode 14: “I Do,” Santana and Quinn went from gal pals just hanging out drinking illegally, to hotel room harlots, fresh from the throes of passion. They joked about “experimenting” and said that their unexpected sex was just a “one,” er, “two time thing.” But these girls have been friends and rivals for years, and this new development gives us fresh perspective on that whole slapping thing that happened a few episodes back — foreplay?

But before we tattoo over our “Brittana 4eva” ink with “Quinntana is Qutest,” we have to acknowledge that sometimes the best love is first love. And the feelings between Britt and Santana are obviously still bubbling just below the surface. If they weren’t, then they wouldn’t have each gone out of their way to make sure the other hadn’t moved on in Episode 13: “Diva.” After all, Santana basically challenged Sam (Chord Overstreet) to a duel when she found out he was Trouty Mouthing all over her woman.

Who do you think is the right woman for Santana? Would Santana and Quinn be able to maintain the mature level of fun they had exploring the tryst they shared in other ways? Or will Santana’s best girl always be the one she calls a “genius” — Brittany? Vote below.