HUNTC-325 『I hate it, but why am I feeling this way…? ※Inner voice』 Every day I was groping my super shy big-breasted little sister, and now I've become super sensitive and cumming non-stop!

For days, I've been groping my little sister's huge breasts! I'm squeezing them every day! She might have been a bit reluctant, but I squeezed her anyway! Since she's weak-willed, touching her breasts should be fine, right? So I gave it a light touch, and sure enough, she didn't get mad. So the next day, I tried being a bit bolder and groped again, and it was safe! Then the following day, and the day after that… I kept groping every day, and then I started to feel it! The more I grope, the more I pant, and eventually, I drool! Has my daily teasing finally paid off? My stepsister's tits are now completely sensitive and prone to premature climax! Next up is the insertion step! But since she feels so good, my stepsister doesn't reject it; instead, she actively seeks out my dick, turning into a slutty state, making it easy to achieve! Everyday mundane efforts have finally paid off, and my stepsister is now in a home sex friend situation with me! Who would've thought that my stepsister is being breast-trained and fucked senseless by her brother, with our parents clueless.