Ruka, my childhood friend, is fair-skinned, busty, and caring. She always teases me about being a virgin. But finally, I have a girlfriend! When I told Ruka, she made an unexpected suggestion: "Can you kiss? Shall I be your practice partner?" I don't want my girlfriend to hate me... so Ruka egged me on, and I had my first kiss. A girl's body is so soft, and for some reason, Ruka seemed really...