Is there any way to prevent my boyfriend from becoming a pervert?

helloitsbaylee
By pervert I mean really disgusting. Please don't say I'm "sexist" I'm not.. I just don't want my boyfriend to say nasty things. I'd rather him not think then or not say them. Yes I know it's a part of growing up.

What I mean.

How to prevent him from becoming a extreme perv.
Should I wear baggie clothes? (To hide boobs and butt)

What?

Again.. by pervert I know guys are gonna think "things" about girls okay I know that. But saying perverted comments... like serious comments.

The main reason I ask (he's in puberty ) he said a girl in a joking way "her shorts are so tight I'm surprised her pants down spilt" he was joking. But I noticed he was staring at my thighs (there pale and my legs are long)
Is there any way to prevent my boyfriend from becoming a pervert?
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