Gotta thank Fuuga for this info \(^o^)/ MuUuacks!
Update 2010: Found the files! ^^ Enjoy!
Quickly go to sweet pool site now before they remove the Valentine special!!! Clicking on the heart on the right will load a short but cute conversation between Youji and Makoto. The heart on the left will load the mini-game (but in this case, the link wouldn’t work, so read on for the game).
After the game loads, click each character at least 4 times and in the 5th you’ll get a different response xD
My fav has got to be Youji’s first response (so shy and sweet ^^) and Zenya’s second response (he sure is a hentai-yaro) kekeke.