What is my stepsister doing here? Does she want a blowjob?

What the heck is my stepsister doing here? I'm just minding my own business, trying to get some alone time in the bath, and she shows up out of nowhere. I mean, I know we're not related by blood or anything, but this is just a bit too much. I can't help but wonder what her intentions are. Does she want a blowjob? Does she want me to stroke her big cock? Or is she just here to tease me with her petite body and seductive moves? I don't know, and I'm too turned on to think straight. All I know is that I'm enjoying the view and the thought of what could happen next. The tension is palpable, the anticipation is killing me. I can't help but think about what would happen if I did take her monster cock in my mouth, if I did stroke it with my little hands. The thought alone makes me weak in the knees.