^ Hehe. I don't remember that. Sounds funny, though. I'll have to give that episode another go.
I am also of the opinion that teen Cordelia knew her way around the proverbial block. A recent rewatch of the AtS episode "Spin the Bottle" reminded me of one piece of evidence and brought up another. First off, upon viewing Angel for the first time post-spell, Cordy repeated her "Hello Salty Goodness" line from the first time she ever saw him. I will let you extract meaning as you see fit. Of course, it is possible that Cordy was using a colloquialism that she had merely overheard; however, the repetition of the line and the fact that the Buffyverse is seldom casual about dialogue or subtext leads me to believe that this is worth at least a mention. Better evidence comes from the "big reward" that she offers Connor, followed by an enthusiastic "Whoo Doggie" in response to his "You mean it?" Cordy spoke with confidence, implying that she knew how to provide the reward worth having. Spin the Bottle's blast from the Cordelia past certainly implied that teen Cordy was more experienced than we know the rest of the Scoobies to have been at that age.
Another thing to consider is how shocked Cordy was to find herself pregnant in "Expecting." When Angel questioned her about what had happened, Cordy replied that it had all been very normal. Although the characters are certainly discussing whether or not she had noticed anything demony about her date, Cordy's words and her actions once again lead me to believe that she had by that time amassed sufficient experience against which to gauge this abnormal experience and, finding nothing amiss, felt a great deal of disbelief. To Cordelia, everything about the date had seemed very normal and not demony in the least. It is implied therein that the sex part of the date was also very normal. It's a shame; if he was going to knock her up with some freaky Hellspawn, the guy could have at least tried to turn in an above average performance. How rude!
Finally, I've gotta say that I like the fact that we don't know about Cordy's first time. It wasn't part of the story, so we didn't see it. That's part of what kept the show from being another 90210 or Dawson's Creek. It's not *just* about hooking up and breaking up. We saw Buffy's first time because it was part of a larger story leading to an awesome Big Bad. We saw Willow's because it signaled the resolution of the Xander/Willow/Oz triangle. We saw Xander's because it was a (more like "the") Xander episode and, also, because it shed light on Faith's character, especially a couple of episodes later when Xander tries to help Faith and she attacks him. But the show isn't about sex, so there are a lot of characters and couples whose first sexual encounters are not addressed. If it ties into the larger story, then we'll see it. Otherwise, there's no need. I think that's a good thing; it means there is more than mere bed hopping going on in the Buffyverse.