Do fuckboys get shy around girls?

I've learned a rumor that my crush is a fboy who gets girls to top/blow him all the time. But whenever I talk to him he turns bright red and quiets up a bit before he gets comfortable to talk. I dont know if the rumor is true then in that case I can't imagine a guy that gets physical all the time to be so embarrased?
Do fuckboys get shy around girls?
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