It's an extra-long Saturday night and porn can often be fun, so here's three pic and clip heavy posts from Charlie Jane on io9: The Greatest Science Fiction Porn Movies of All Time: 1961-1991 [NSFW]; The Greatest Science Fiction Porn Movies of All Time: 1992-2001 [NSFW]; The Ultimate Guide to Science Fiction and Fantasy Porn Parodies [NSFW]

I haven't checked to see how many of these are on Netflix, Hulu or Amazon yet, but it could just be a matter of time.