Step 1: show your friend your butt. step 2: shake it. step 3: get caught by another friend... oops
/r/VerticalGifs: NSFW Vertical Gifs - Vertical Porn may annoy desktop fappers, but we mobile wankers prefer it! No more flipping your phon - May 10, 2019 - 13:14
/r/ass: The Callipygian reddit - An art reddit to enjoy artistic views of female bottoms of the highest caliber. - May 10, 2019 - 13:06