Hikari/David is another pairing from Digimon that I really liked, it's a real shame how the wielder of courage seems to always get the short end of the stick when it comes to romance in he anime.
I really enjoyed this story, but then I cringed when they started to have sex with their Digimon. While I accept threesomes, I really do hate bestiality.
That's one way to show her teamates support, that's for sure. Good job.
I'm surprised you didn't mention any of the body paint coming off. I imagine at least some of it would have :p