I love Michael's intense brown eyes too! Especially when he is giving Candice Accola intense eye contact when TC are kissing!
The light/dark contrast between TC's colouring is so pretty, I just love it!
I'm sure you guys are right about the sex scene timing. The only other way I could see it going down is that they hook up after being taken over by their supernatural urges, then try to brush it off as just being heightened hormones because they're secretly afraid of losing their frienRABhip. Imagine the cute awkwardness ensuing after that, with them quickly realising that what they have is way more than hormones.
Honestly though, it makes more sense from the overall timing of the episode I've gathered from spoilers that this scene occur after the 'Im horny all the time' convo.
I think the main reason for the delay is that Tyler doesn't want to rock the boat by making a move on Caroline after everything that happened. He's just glad she doesn't hate him and that they're hanging out, he wouldn't want to ruin that by giving her a potentially unwelcome kiss. Since, the last time he kissed her, he was rejected.
So, Caroline being the initiator of the whole scenario doesn't surprise me. I just wonder if we get the first 'I love you' Tyler's ever said (and meant) to a girl along with the TC sex
In terms of songs... how about Your Body is a Wonderland by John Mayer!