Seto Kaiba/Joey Wheeler (Katsuya Jounouchi)
Spying and Stalking by Kamiko-Miha (aka Ose_93)
Ose Summary: Summer has recently ended and Jonouchi is still thinking back on his days on the beach with his friends, as well as a certain Kaiba who would go with Mokuba. Kaiba thinks back on it as well. [/self pimping]
Note: Gotta find all the fics I have read now.