In'yoku Tokubetsu Kyoushitsu ~Ojou-sama Shimai ga Class no Kyouyou Inniku Kyouzai ni!~

The downfall of mistress to meat servant! A determined elder and innocent younger sister attend school among boys. During class, at lunch and afterschool their tender flesh becomes a receptacle for hot c*ck until the girls are shrieking with gapeface wantonness!