This is a bad story because the true ending to this is that they graduate and then are made to suck the veiny and bulky shlong of their fat and bald household masters.
No, after they graduate they are made to suck on Teacher Mary's classy bean. Can't speak for the rest.
Nagisa's does her impressions of people:
Nagisa is gooey and white, Sayaka is moldy, Mami is squishy, Madoka is torn from her divine powers...
And Homura is about to pop a vein.