HUNTA-235 The sexual pranks my stepsister plays drive me crazy! My mother remarried, and suddenly I have a cute junior high school stepsister! She dresses quite carelessly, but since she's my sister (even if by marriage), I'm trying to hold back my excite

My cute junior high school stepsister, born from my mother's remarriage, dresses in a very unguarded manner that makes my heart race! Even though she's my stepsister, I can't help but get excited. My stepsister, who is at an age where she's overly interested in sexual matters, teases me even when our parents are around! And she does it in a risky, sexual way! At first, I could somehow hold back, but as her teasing escalated, I finally got a full erection! Once erect, I couldn't hold back any longer and ended up crossing the line...