Dude, super happy for you! Congrats on getting kisses! I remember the first time I started getting consistent kiss closes and make outs. It's a really powerful feeling when you know you can dominate a venue, pick a girl from the menu, and completely wreck the place. Love it!
Now I know you're new to kissing girls, but where 90% of guys think "Yay! A Kiss! Horay!" That's merely where the rubber hits the road. You start getting some resistances and crazy weird crap, etc... Just because you're kissing her doesn't mean you'll be taking her home

However, good job on pushing to extract with that last girl.
I like to compare extracting to getting numbers. Tell her, don't ask.
YOU SAY: "Would you like to come back with me for some wine?"
SHE HEARS: "Would you like to come back with me for some wine and sex?"
You need to COMMAND PRESENCE. You upsell and lead, she follows.
YOU SAY: "I've got the most delicious dessert wine chilling in my fridge at the moment. I just had dessert here, but I've got a hell of a sweet tooth. Come join me.
SHE HEARS: "I've got the most delicious dessert wine chilling in my fridge at the moment. I really like you a lot and I'm a super confident hot guy who will take you home tonight."
While I was doing a bootcamp with JT and Sarah, we had a high quality problem of running out of room on these benches we were sitting at. I had a student with a girl coming in. I immediately leaned towards the group and said, "Everyone needs to schooch over right to make more room. SCHOOCH!"
Without skipping a beat, everyone moved, my student sat down with his girl, and everything was merry.
Same thing with Gareth this weekend in NYC - We also had the high quality problem of too many girls. Gareth did basically the same thing I did at LA. Both times I've heard girls say,
"Wow, that guys is REALLY commanding!" and she said it in a good way (her voice got low and gave me/Gareth bedroom eyes, awww yeah!)
With Kissing - this is an easy rule and easy tip - always stop first. This will drive your girl crazy. What guy STOPS kissing a hot girl? I've been able to drive girls crazy with this, to the point where one girl almost ripped my hair out, pulling her face to mine with more force than a Oreck Vacuum Cleaner (it can lift up a bowling ball!)
Hope this helps out -
Ben J