I haven't had a problem in the past that I know of but I am in a new relationship that is progressing to the point of being sexual and I know that my new partner has had well endowed men in the past and I know that my 6 inch length and 4.7 inch girth may be a problem because it is small girth, she has told me that size doesn't matter it's the motion of the ocean but I am a little nervous... should I be?