I've had all sorts of experiences in my life, including at the cinema with my friend. But of course we did not undress. So my friend bent over and sucked me off, then climbed on top of me and jumped on my dick. That's even the neighbors in the hall have stood, but as in this video - never happened! Unless you can find a movie theater with an almost empty auditorium, and that's not so easy! It's easier to run into a cheap hotel for an hour!
That the sister is interested in her foster brother's opinion is commendable. And assessing her worthiness from a man's point of view he can. But asking him to jerk off in front of her is kind of weird. He's going to get her, isn't he? Only this slutty girl is not scared at all - that's exactly what she wants. He ended up flushing a whole puddle on her tummy! Drove it.
What's her name?