From BLAST: Seems like Cloud went out by himself and when he got back to their quarters/home, Sephiroth is really mad at him. To calm him down, Cloud starts stripping and teases Sephiroth. That worked. The following day, Zack was called by Heidigger regarding a previous mission which he seems to be mad about. So Zack tries what Cloud did to Sephiroth.

Pairings: Iori x Kyo, Benimaru x Kyo