This. Plus she has a more European outlook on the world than an American one. But I don't think that has anything t do with her kissing Fishburne.
http://www.independent.co.uk/news/p...-to-honour-her-instead-of-hiding-9777298.html Gillian Anderson felt that she owed it to her late former girlfriend to open up about their relationship. The actress – who first discussed her gay relationship in 2012 – was in high school when the two dated "for a long time", but thought it was important not "hide" what happened, following her death in 2011.
Folks, it's also an important note that it is exceedingly common for actors to kiss each other on the lips as a greeting. Straight male actors, on occasion, kiss on the lips. That, I have seen with my own eyes. A-listers, B-listers, etc. A friend of mine has a production company in LA and lip kissing in Hollywood is really par for the course among friends.
I remember Wil Smith had kissed Brad Pitt. Sammy Davis Jr kissed Ed McMahon, Jerry Lewis, Dean Martin(maybe)and Carroll O'Connor on an episode of All In The Family. Laurence Fishbburne kissed Christopher Walken in the film King Of New York. This is done only among close friends.