Paizuri Kyoushitsu -Seiseki Kai wa P-gumi ni Kakuri Sare Kyousei Renzoku Shasei Kyouiku o Hodokosareru Gakkou-

When your grades drop to lowest in the class,
you are moved to Class P, which does breast-fucking everyday.
As the only boy here, the girls all want to breast fuck you.
But it changes into a harem hell when they won't stop
no matter what you say, or how many times you cum.

[From DLsite English]