When my dad got remarried, I suddenly found myself with a new stepsister who was the same age as me. But that's not even the craziest part—turns out, she's the girl every guy in our class dreams about. She's the shortest in school, yet she's got the biggest breasts you can imagine!

Here's where it gets wild: she's got this bizarre idea that it's an older sister's responsibility to 'take care' of her brother's sexual needs. So, she's constantly coming onto me, trying to fulfill what she thinks are my desires. It's totally mind-blowing and a bit overwhelming, to say the least!