A: Does he talk to you? Does he hang with you in public? Then probably, it's just a new relationship. Usually in new relationships, that's all you do at first - have sex. Those are the good times. When you stop having sex, THAT'S when it can get boring.
A: I don't mind kissing someone after they go down on me. I have had only one guy who didn't want to kiss me after I gave him oral. Most guys are just happy to get any - period.
A: Okay. First time you get fingered, if you have NEVER been down there yourself before, you will be very tight. Which, is a good thing. A bad thing if it's a guy who doesn't know what he's doing though. If you felt a 'rush' as you say, he could have A) been hitting your G spot, which will make you... more