Well this doesn't make sense to me. They want to be more than friends with benefits, but they are "not there yet". If they are "not there yet", everyone is free to do whatever they like. This actually might be the reason why they are "not there yet", she wants to keep her doors open. OP needs to decide if that works for him or not.

But you guys are not in a relationship..

But they are not in a relationship...this is ridiculous