Use the "Add to Collection" icon in the top right corner of any video thumbnail when you're logged in (desktop version of site only) or directly from a video page with the "Add to Collection" button under each video.
FIRST! Hey, I get it that this is all staged, and I even give some credit to the performers for at least attempting to make it look legit. But, what would really help is to get actors/actresses that look the part without having any physical features that makes them "obviously" look like a porn star, instead of a typical shy housewife. I guess it's hard to find willing porn stars that don't have tatoos. Note to rising porn starlettes: do NOT get ANY tatoos - they do nothing for your career.