Hi there, I don't know the whole situation, but it sounds like you said yes because they got really upset and you felt bad for them, not because you really wanted to say yes.
You should never say yes to something that makes you uncomfortable for the sake of someone else's feelings. That's a rule for life in general. If someone's way of making you agree is to throw a big fuss and make you feel terrible, that's not going to lead to any sort of healthy relationship.
Or maybe you are okay with it and don't mind giving it a try, in which case yes of course you can be both a little and a CG. It seems like there are many people who are and youll see sometimes they refer to themselves as switches.
Take care and be safe.