What does it mean when a guy asks me if I've ever kissed anyone, but replies with an "oh lol" after I said no?

He only said "oh lol" what was he really thinking or saying? I have no clue, there wasn't any emotion or feeling for me to see. PLEASE HELP
What does it mean when a guy asks me if I've ever kissed anyone, but replies with an "oh lol" after I said no?
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