In the early part of this scene, Jimmy gently rubs an ice cube on Sean's cock and then puts it into his mouth. This can be a very erotic technique, particularly if your lover uses the cube long enough until your cock is somewhat numb, and then immediately puts it in his mouth and sucks vigorously as all the sensation returns.
I believe the scene below is that same one that was depicted in still pictures a few weeks ago here on the blog. Thank you to the reader who brought this video to my attention.
If you'd rather watch on the source webpage or to download your own free copy of this video, you'll want to click here.