Augh. God damn it Gaoo, why? You're a douche, but you're better than this.

I just want to see this translated. This way I'll know whether the kid is lucky, or if Keine is developing new ways to punish her students due to one too many head-butting complaints.

Oh well. Saw the pic on gelb.
Here is the translations. Some privileged guy can put them in:

Keine:
Endure it, got it?
Don't dare cum yet, got it?
This is the punishment for being late, got it?
Come on, stand straight!

Keine:
It hasn't even been 5 minutes yet, you know?
Come on, you have to endure it!
Endure, endure!

Keine:
Mmm?

Boy:
Se- sensei...
Ah, aah...

Keine:
... You came, huh.
Although sensei told you not to?

Keine:
Another hour for you!
And when my hand gets tired, temporary teacher Mokou-sensei will do it.

Boy:
Eh?