Is it a bad sign if a guy asks for nudes🤔?

I’ve been talking for this guy for a couple months. It’s long distance. He lives a few hours away. We have hung out a few times and we haven’t had sex but we have done other things. The sexual chemistry is crazy. I think about it all the time and I feel like he does too. Today he asked for pics and he never had before. Is this a sign he only wants me sexually? We talk about all kinds of things it’s not always sexual. But I don’t wanna miss a red flag.
Is it a bad sign if a guy asks for nudes🤔?
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