Oath

We really can't turn the room into a battlefield like that… So sister went to the bathroom to bathe first, and after she was done, she called me to go in next. After finishing my bath, I walked up to sister and hugged her, saying: 「I know you don't like male bodies and only share female-female love with Daji-jie, but the two of us were raised together by Mom since we were little, eating, bathing, and sleeping together until you grew up and we stopped staying together, so you probably won't dislike me.」 She nodded, and only then did I continue: 「This relationship of ours makes you very cautious, but I absolutely guarantee I won't let anyone else know, and I care about your feelings. As long as there's any discomfort in our time together, or anything that makes you scared or sad or violates your will, I swear I absolutely won't do it.」 After hearing this, Qing-jie hugged me tightly, and we stayed like that without speaking for a long time, until she seemed to feel a bit chilly and separated from me. After rinsing her with some hot water, I sat on the edge of the bathtub, and she naturally knelt between my legs, lowered her upper body, and started blowing my G8. After just a few minutes, my cock became even harder and thicker. Sister knew I was ready, and she had also built up her mental preparation, so we both stood up. Sister supported herself with both hands on the edge of the bathtub; because her upper body was lower, her hips were raised high, and right in the middle of her two butt cheeks, my erect G8 was facing directly forward.