We know from the truth or dare one that she kissed Victor, Chase, Alex and Karolina, we know she did Victor from a reference I'm pretty sure after Xavin left Karolina and her hooked up because it seemed like they were together and they were never shown kissing, not really sure about Alex and Chase though I mean there were opportunities for both of them but nothing was mentioned or shown to specifically indicate anyways I think she did Chase, Victor and Karolina and she just didn't have the chance with Alex because she was more innocent and freaking out back then

Nico was in a long term relationship with Victor.  It has been established that they were sexual partners.  She didn't just 'do' him, as they were in a relationship.
 
Nico didn't sleep with Chase.  She kissed him while he was still dating Gert, after his bluff saved their lives.  He immediately pushed her away.
 
She didn't have the chance to sleep with Alex.  They had a crush on each other, but there were too many things that got in the way (including an eternally teenaged vampire, and Alex's apparent death).

Woooo  (:
I love Nico!

" Woooo  (: I love Nico! "

" @AngelFrost said:

" Woooo  (: I love Nico! "

we all do "

<--- just one

.....................i think just victor and she just kisses her other teammates

ehh who didnt bi-sexually experiment in high school

i kill thread hahaha