She was a casual sex partner when one day an older man gave her a strange drug (a so-called aphrodisiac)... From then on, she couldn't stop wanting a penis, and her anus became wet. Shirakami Sakika SONE-652

One day, I went on a date with a female student. A so-called "friends with benefits." That girl was so cold... Even though I paid, all we got was emotionally unsatisfying masturbation and blowjobs. What a kid. I was furious, so I forced her to take an aphrodisiac and taught her a lesson about real life at the hotel. The aphrodisiac was really powerful. Even a woman as cold as her, with the aphrodisiac, would have a convulsive orgasm. She'd contort her body, making moaning sounds like "Ahhh." Today's friend with benefits was very satisfying.