I think you can click the little gear icon in the lower right corner of the media player to adjust the playback speed. Set it to 1.5x and it should emulate the normal playback speed of the clip.
Nicely shot! The HD rez and 60fps really enhances the incredible slo-mo sequence of the moneyshot. And damn! Those breasts! Those lovely, fabulous breasts! All combined, makes for an incredible piece of erotica!