https://www.dlsite.com/books/work/=/product_id/BJ089039.html
As always, please support the artist and buy his works.

Cowgirl's Riding-Position Makes Me Cum

"Please...don't ever insert yourself...!"
A high school girl straddles me and rubs her melting crotch.
Horse stimulants really make girls go into heat!!
--I live a dull life doing odd jobs in a horse riding club full of women.
One day, I happened to get a horse stimulant to deal with my daily irritability, and I applied it to the saddle of a female club member, and something terrible happened!!
Even the cheeky juniors and the clear-headed managers can't stop the naughty itch running through their pussies!?
Her body, heated up by being made to cum by his fingers and tongue, continues to twitch and beg for more...
She says, "If you promise not to penetrate me," and they go into bareback sex.
I can't help but use my hips so hard that I trained in club activities...!!

English version(1-10): https://e-hentai.org/g/2490410/3c6c9dd102/