Guy's Snapchats Of Subway Rider Fingering Girl Next To Him Are So, So Angry

Snapchat is a great way to keep up with your friends, show the world all the cool shit you do on a daily basis or, you know, Snapchat-shame some complete strangers on the subway.

Recently, one Snapchat user bought a pass for the subway, but little did he know this particular train ticket would also came with a free show -- and no, I'm not talking about those break-dancing dudes who yell, "It's showtime," and then twirl around on the subway poles.

This public performance was more along the lines of a soft-core porno.

That's right. This Snapchatter ended up scoring a front row seat to a very NSFW show he fittingly called "The Sticky Fingers Challenge."

If you're not familiar with this scandalous challenge, it's just as gross as it sounds.

Apparently, the couple was sharing a pretty steamy moment on the subway. However, this wasn't your typical PDA.

What presumably started as a simple make-out sesh quickly escalated to an all-out display of shameless fingering in broad daylight.

Since this unlucky Snapchatter was trapped in the train car with these frisky fingering passengers and had no other place to go, he did what any logical person would do.

He whipped out his phone and recorded the x-rated "Sticky Fingers Challenge" for the whole Snapchat world to see.

Apparently, these two went at it for a really long time, and as you can imagine, the novelty of exposing their obscene subway behavior via social media quickly wore off for this poor bystander.

If you're interested in seeing exactly what went down on this NSFW subway car, here's the entire Snapchat video of the Sticky Fingers Challenge.

But before you click play, you should make sure your boss isn't standing behind you because this clip is pretty inappropriate to say the least.

Stinky Finger Challenge pic.twitter.com/fkWHcJcuTh — LASTCALL (@SmackDatBooty69) August 31, 2016

Seriously, some people just have no shame.

Citations: Guy Snapchats Couple Doing The 'Sticky Finger Challenge' On Bus Ride Home (Dude Comedy)