Something else that deserves a mention here is that what one lady likes another doesn't. I've known girls who like to be treated gently, others less so. Some like their nipples sucked as hard as I can, others don't. Some like their clit sucked, others can barely tolerate direct contact.
Taking the wrong approach with the wrong girl can make a man look like a newcomer! It's important to communicate with new partners and part of that isn't teaching what women/men like but what you, as an individual, already prefer. Other things we can discover on our own.
One of my happiest sexual memories is giving a 27 year old lady, my girlfriend at the time, her first orgasm. I will never forget. She was laying on her back and I was DATY. She shot up, bolt-upright, just like she'd been underwater and now rising up gasping for air, and she grabbed my arm and said my name. What happened, she said afterward. It might've been an orgasm, I said. Immediately, she told me, she remembered all her dismissive discussions she'd had with friends about sex, talking like she was an expert. She now felt ashamed of those and immediately called her friend and told her about the orgasm. It was a sexual awakening. Soon afterward, I bought her her first vibe, which we used to good effect. She's married now, but her husband owes me a beer.
Likewise, she turned me on the BJs. She's the first that could make me come during a BJ. My current Fbuddy has turned me on to rimming. I can't get enough of it. It wasn't an overnight sensation, though. It took some exploring.