Correct fact: while the HIV has been found in tears, there are zero recorded cases of it spreading through the eyes. In fact, there's only a 1:1000 chance of contracting HIV if you get HIV positive blood in your eyes.
This can actually be harder than it looks, you have to get the angles right for the eyeballs to really touch. At least that's how it was when I tried it.
Does anyone remember this being one of those things The News makes up about teenagers to scare old people into sitting through a commercial about reverse mortgages? "And finally at the top of the hour a The News exclusive: Kids These Days are having sex by touching their eyeballs together. Film after the break." Like how The News basically manufactured the Tide Pods thing.