https://gfycat.com/TestyTenderAyeaye
more general xxx photos in category SauceForScience
from #thread (https://reddit.com/r/SauceForScience/comments/4wpche/back_and_forth/) by @SofMFullLouis
Twisting the stroker around his cock slowly back and forth... [OC]
gfycat.com category @velvetveronica