If I Have a Chance, I Want to Warp My Boyfriend's Fetishes!

Misaki has been dating her adorable boyfriend Yuu-kun for two years. One day she finds his onahole, and asks him to show her how he uses it. The fires of mischief soon blaze to life in Misaki's heart. She wants to see more. She wants to do more. (Source: DLSite)