Petite stepsister seeks approval from me before going out with her boyfriend, but I indulge in sexual encounters with her first

I've always been a bit of a voyeur, and my step-sis is no exception. She's got this irresistible charm that draws me in, especially when she's on the verge of going out with her boyfriend. Before she leaves, she always asks my blessing, which I'm more than happy to give. But what she really wants is to show me how she's earned it. So, every time she's around, she's been dropping little hints, and I've been more than willing to play along. Recently, things have taken a bit of a turn. She's been acting even more provocative, leaving nothing to the imagination. And as much as I try to resist, I can't help but give in. The other day, when she came over, she was practically begging me to take her right then and there. And you know what? I did. We started off with some pretty tame stuff, but as the heat built up, we soon found ourselves exploring some more... adventurous territory. It was a wild ride, but in the end, it was worth it.