Those two are Jessy and Seth. Jessy is Aoi Jessy older twin brother and Seth is his sensei (and she has a crush on him, but she doesn't admit it). One night she got drunk and started to flirt with Jessy, trying to seduce him. But like a real gentleman, Jessy doesn't do anything, he just took her to his bedroom and let her sleep (in his bed of course ). They look so cute together . But what happend in the morning, when she woke up... Well... You will see soon. ;D