what did akashi mean when he said bokuto didn't know what happen?

I think he meant that when tsukki was sucking kuroko's dick and when he was coming in his top and bottom half, bokuto didn't understand anything but knew Akashi was sexy and cute

ouhh.. but i also don't get it?

he didn't know that Akashi's mouth/throat was his number one erogenous zone a part/place of the body that when touched you will feel a heightend sexual arousal as the place has heightened sensitivityლ(´ڡ`ლ)

Bokuto didn't know that inside Akashi's mouth was his number one erogenous zone, , which is a place in the body that when touched, you will feel a heightend sexual arousal as the place has heightened sensitivity ლ(´ڡ`ლ)

ouh .-.