Girls: Need Serious Help With My Relationship...?

i dont want any stupid answers. this is serious.so if you want to write stupid comments then dont bother. recently iv been having a serious relationship with a beautiful young women. shes great and i feel like i could spend the rest of my life with her. the only problem is it hurts her during . i know some people say bigger is better but i cant see it being the case for me. i have always been freakishly "well endowed" and felt proud.. but when i found it hurts her i was saddened. i dont want to hurt her. does anyone have any ideas or suggestions on what i can do? does it become a little "easier" for girls over time? if it helps then my size is 9.2" x 6.5"