"Wine-stained conversations", prepare for your lawsuit from Taylor Nation for this blatant Clean plagiarism! I enjoyed the alliteration of the second line (all of the sss sounds contribute to the Taylor motif). Seriously, though, it rolls off the tongue very well. My primary issue with the first stanza is that the wine and virgin kisses are giving me slightly different tones. I may be somewhat pedantic here, but alcohol gives a more mature vibe that doesn't quite mesh with the virginal, sexually immature characters you're depicting. The more mature vibe continues throughout the song, so I think this would be best fixed by replacing "virgin" with something like unknowing/idealistic (although it's up to you to find a synonym that fits the line

). The second stanza is cute, I have no complaints. The first stanza of the chorus is very natural and has a lot of #contemplation in only 4 lines. Not quite sure that hearts can get sunburned, but use your imagery how you will. I'm not sure that I'm down with the rhyme scheme change in the second stanza of the chorus. It seems that you were doing ABCB for the rest of the song, and then it becomes ABCC. "Lost to the sky" is a tad lazy, only because there are dozens of songs that talk about people's emotions/regret/whatever disappearing into the sky (see the #4 peaking hit, "Empty Sky"). That said, it at least fits in with the language and tone you have throughout. Overall, this is a nice snippet that does a great job at establishing mood. Biggest critiques would be to focus on connotation more and the literal implications of your lyrics, even if you mean them metaphorically.