One sac to rule them all

Please put an NSFW tag on this. I was on the train and when I saw this I had to start furiously masturbating. Everyone else gave me strange looks and were saying things like “wtf” and “call the police”. I dropped my phone and everyone around me saw this image. Now there is a whole train of people masturbating together at this one image. This is all your fault, you could have prevented this if you had just tagged this post NSFW.