The uke tried seme's cigarettes and seme asked if it tastes like him. Then uke secretly started to smoke the same brand and fantasize having sex with seme.
As much as I adore incestous yaoi, I couldn't really get into this one mostly because I was having a hard time telling the brothers apart and if it was the uke or the seme that was lusting over the other... I guess that's your loss when you're trying to read a dj of a couple you no nothing about.