Series Even though she's a gal, my super shy step-sister is a bit of a gal, but after I've been teasing her every day, she's become super sensitive

My innocent and extremely shy stepsister became super sensitive and prone to premature ejaculation after I harassed her every day, and now she's orgasming like crazy! She transforms into a perverted girl who orgasms like crazy with a vulgar look on her face. - Ayatsuki Nanao

If you keep teasing your innocent and extremely shy stepsister every day, she will become super sensitive and prematurely ejaculating! She will suddenly turn into a perverted girl who keeps cumming with a dirty face. Karin Kitaoka