I refuse to believe his brother was trying to attract him. I hope it was intimidation
Blush doesn’t automatically mean attraction. He could be blushing cause he was negatively affected by the pheromones (nausea, fever)
I just thought he was affected by the alcohol. Since he did mention he had too much to drink. Also doesn't alcohol make you hot hence the blush look?
Or he finally showing symptoms of having his 2nd gender being revealed
Was the last panel where he was a chibi saying, he's lacking inferno (I assume he means his pheromones), the reason why he became flustered??
Because I refuse to believe he was being affected by the brother...