I've got bumps on the shaft of my . How can I prevent my girlfriend from freaking out?

well as a nurse I would say if the bumps are that big ask your doctor they could just be ingrown hairs that can be easily fixed. you should also check anyway to make sure that is all it is. But if it turns out to be nothing do not worry about it noone is perfect and if it was meant to be and you really love her and she you it will be fine.