Currently weighing 170lbs and 5ft tall my waist is 35in and my thighs are 23.5 inches.. how to get them thicker?

I am a bodybuilder with a lot of muscle mass
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I lift heavy weights 5 times a week
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Just want thicker thighs
Currently weighing 170lbs and 5ft tall my waist is 35in and my thighs are 23.5 inches.. how to get them thicker?
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