Cowgirl's Riding-Position Makes Me Cum

"D... Don't you dare put it in, got it...!?" A high school girl rides my dick, grinding her wetness against me. Turns out aphrodisiacs meant for horses work on girls, too!!

(Source: Coolmic)

Volume 1: Jouba Joshi ni Noraretai! (乗馬女子に騎乗られたいっ！)
Volume 2: Jouba Joshi ni Noraretai!: Namashibori-hen (乗馬女子に騎乗られたいっ！ナマ搾り編)
Volume 3: Jouba Joshi ni Noraretai!: Hatsujou Apartment-hen (乗馬女子に騎乗られたいっ！発情アパート編)
Volume 4: Jouba Joshi ni Noraretai!: Yarisugi Yuuenchi-hen (乗馬女子に騎乗られたいっ！ヤリすぎ遊園地編)
Volume 5: Jouba Joshi ni Noraretai!: Hanmon Twilight-hen (乗馬女子に騎乗られたいっ！煩悶トワイライト編)

Notes:
- Includes 5 extra chapters.
- Originally serialized as a web manga under the title Jouba Joshi no Kijoui wa Ero Sugite Hassha Fukahi! (乗馬女子の騎乗位はエロすぎて発射不可避！).
- Simultaneously released in long-strip and traditional formats, with 189 episodes and 63 chapters respectively.