So I’m a young teen and whenever I masturbate ( rub my clit, finger myself) it gets to this point where I can’t carry on because it is too good?? Is that a thing?? I just feel like I want somebody else to be doing it not me so I can have my hands free to squeeze something. Is it normal? Is this before an orgasm?

I want to keep going but I just physically can’t because my back arches and my leg goes stiff and my hand just won’t move.