Opinions may vary as to whether this actually counts as "cheating", seeing that Sensei did not realize he was (a-hem) with Misaki-chan until things (a-hem, again) came to a "climax" (no pun intended, really).
...Hmm, A 'little sample', eh?
I was actually half expecting him to have just been acting the whole time and that he actually knew that it was her, but apparently not. He really didn't notice...
It's too bad the mother didn't get any action, but I'm pretty happy with what we got here.
So What Happens Next? ... DUN-DUN- DUNNNNNNNNN!
Only One Way to Find Out, eh?