The 12 Days of (Xmas) Cumming!
On the 3rd day of cumming...enjoy some holiday porn!
Go to your porn site of choice. A good free one is Xtube.com! Find some holiday porn using a single-word search term such as "Xmas" or "Christmas".
Try to ignore the length of the video and pick one that looks hot to you.
If you have a masturbation sleeve such as a Fleshlight or Tenga, use it to fap as you watch the video! If you don't have one, don't worry - you can use your non-dominant hand (the one you don't usually stroke with) to fap with instead!
Try to pace yourself so you cum near the end of the video! Be careful, though! If you cum early, you must keep stroking until you finish the video! And if you finish the video before cumming, you must pick another! So pace yourself! ;)