When my boyfriend and I can't have full sex I lie on my front and then he gets really revved up nibbling and licking my backside while he strokes off - I do my own strokes at the same time - is this normal please ?
I'd have to say this is better than accidentally impregnating yourself by having unprotected sex. So you found a way to safely exert your sexual desires for one another. Perfectly normal, and actually quite smart of both you. Enjoy yourselves.