Oh, Charlie/Neville is one of my most favorite OTPs and this is so hot. I love the use of the vines, and Charlie watching the first time. The mermaid's suede is such a great little plot device; it fits into the canon perfectly! But what I love most of all is how easy going and casual they both are. I love seeing Neville confident about sex and Charlie so eager to just go for it.
This was a lovely read! Well done!