(not necessarily romantic)
On The OC:
Marissa & Ryan
Summer & Seth
Ryan & Seth
Ryan & Taylor
Sandy & Kirsten
Anna & Seth
Ryan & Lindsay
Marissa & Alex
Summer & Ryan
Summer & Zach
Marissa & Seth
Taylor & Seth
Summer & Taylor
Out of The OC:
Rachel & Adam
Mischa & Rachel
Rachel & Ben
Mischa & Adam
Ben & Adam