well depends.... If you lookin for long relationship theres always right time for that.. If you lookin for fun its so easy to hook up specially if your fine goodlooking person.. As you've said, you have choice already so as everyone..
based on my experience...girl and boy can be real bestfriends...which really rare... wont be easy as you there will be circumstances that both of you fall into each other.. yet, you have to controll it as you wont like loosing real friendship..