Too fat for a bikini?

I'm 5"9 and 128 lbs, and I feel like my thighs are way too big for a bathing suit. The closest celebrity "bikini body" to mine is Katy Perry's-- but I'm still self conscious about not being stick thin. Is that too fat? (I am honestly not trolling, I'm putting this here to avid negative answers. I am seriously concerned and scared to go to the beach.)