Should i lose weight......?

im not fat, im like 5'1 and 125 lbs. i work out almost everyday but i have a big butt and hips, im a size 7 sometimes 5. the only problem is most of my boyfriends chick friends are like super skinny, so is his ex and this chick he used to like, who hes still friends with. big hips and butts run in my family but idk if i should try to lose as much of it as i can, hes never made me feel bad but i just feel ugly and fat compared to his friends =( what should i do? thankss