My neighbor (f 30) is putting on a private show for me

I'm 26 m living on the 6th floor, and the building next to mine only has 4 floors. A neighbor lives on the top floor there who always keeps all her curtains wide open. I’ve seen her and her boyfriend , when he’s over on the weekends, naked quite often. They’re both in their early 30s and a very attractive couple. But for about a month now, I’ve also been seeing them regularly fucking around all over the apartment. Without sounding weird, I often watch them and pleasure myself while doing so. I mean, not everyone gets a chance to see a show like that. In any case, I had the feeling she saw me the last time because she looked right in my direction and laughed really hard while he was doing her from behind. I’m toying with the idea of talking to her sometime if I see her on the street.