Sleeping with many girls?

He meets a lot of girls as he's a bartender and he has many female friends. So he's used to seeing women wearing revealing clothes. And he's also sleeping around so it's not like he hasn't seen a woman's body. But whenever I wear something even slightly revealing, he can't take his eyes off and I see his eyes looking over every bit that's exposed continously. Why would he do this?
Sleeping with many girls?
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