How can I watch videos using Google Chrome without downloading them?

[soles and toes]

Ok so some sites that I watch porn on I can just click on the video and it takes me straight to Windows Media Player. But on other sites when I click on a video it downloads it to my computer first (to the Downloads folder) and I can only watch the video through Windows Media Player after that.

Is there a way to stop it from downloading videos and taking them straight to the Windows Media Player? Maybe some sort of a Google Chrome plug-in?