性的ないじめですか？ いいえ、ご褒美です！ ～学園のアイドルたちに肉バイブ扱いで好き勝手精液を絞り取られる性活～

Guys are herbivores, girls are carnivores in modern Japan.
Three female students rule over a boy at Academy of Cursed Top with sexual harassment.
When they discover his big dick he becomes a living sex doll for their whims!

Girl-on-guy persecution! Male masochism under the cruel sexual tyranny of women!
It's not torment, it's a reward.