original post: https://redd.it/p96pa2
[Timelapse] My penis becoming erect while watching porn
MotiveSexOrgans by TheHornyBassist
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[ Timelapse] My testicles shifting around while I game
Timelapse of my nuts pumping fast!
Effect of ice on balls
Playing Diablo 2 on one screen, watching porn on the other
[Timelapse] From soft to hard