Unless he shows you there’s not. Different bodies respond differently to different sizes, there’s no way to know what will feel good for you until you try it, just keep that in mind
3
Anonymous#13w
So:
It does matter, but you cant know?
1
AnonymousOP3w
Yeah it’s like eating food. You can’t know for sure if you’re going to like a certain kind of food unless you try it, and everyone likes different things