Kissing advice

So I went on a second date last night with someone I met on Bumble back on June 30th or early July. Our first date was on July 30th of last week, so we had been talking for a month. Anyway, we finally went on our second date and it was really good. Went to Tropical Smoothie Cafe and we were there for a while and then we cruised around until we ended up parked in front of Target. We mainly just talked at first and then we slowly started kissing. Now, I had never dated anyone before or been in any serious relationship. The last person I really kissed was like in middle school and he knew and understood that. And him and I had kissed a little after our first date when he walked me to my car, so I kinda knew what to expect this time. So we're slowly making out like a little bit then the next thing I knew his tongue was in my mouth. Looking back I don't think I used my tongue so much, I think maybe a little and maybe I kinda sucked his a little like unintentionally. I don't know😂 I was just going with the flow and following his lead. But the tongue is what really took me by surprise. I mean I didn't hate it but I guess because I'm so inexperienced it was a little weird for me. Now, I'm hoping I didn't do anything wrong lol And I'm into fanfiction lol And a lot of the stuff I read, apparently when someone is gonna use tongue they "ask permission" by slowly licking your lip. Like "asking for entry" I guess. Then you part your lips or whatever. Is that true? Is it supposed to happen like that? I really don't think that happened in my case. His tongue was just in my mouth so fast lol