WARNING: THIS ARTICLE IS FULL OF SPOILERS ABOUT STRANGER THINGS 2.

Revelations about the making of one scene in the Stranger Things 2 finale have caused controversy on social media.

The ending of Stranger Things 2 sees Max (Sadie Sink) and Lucas (Caleb McLaughilin) exchanging an awkward kiss during Hawkins Middle School "Snow Ball" dance.

In Netflix's Beyond Stranger Things after-show, the Duffer brothers and the cast discuss the final episode, and things immediately become oddly heated up.

Asked how it was shooting the kiss scene, Ross Duffer immediately goes on the defensive, telling Sink it's "all her own fault."

The 15-year-old actress, who is visibly upset, notes that "the kiss was not written in the script":

“I get there, the first day of filming the Snowball and walking in I see the decorations and stuff. One of you, I think it was you Ross, you say, ‘Ooh, Sadie, you ready for the kiss?’ I’m like, ‘What! No! That’s not in the script… that’s not happening."

“So the whole day I was like stressed out, I was like oh my god, wait, am I gonna have to…is it gonna happen, is it not... and it didn’t happen that day, but then the second day of filming the Snowball.”

Duffer replies: "You reacted so strongly to this. I was just joking, And you were so freaked out that I was like well, I gotta make her do it now..." To which Sink says: "That's why it's my fault?"

"That’s why I’m saying it’s your fault," Duffer responds.

The actress later reiterates she was stressed out as the kiss was filmed in front of a full room of people, including "their parents, and the crew, and my mum" and it's now seen by millions of people around the world.

People took issue with the whole exchange and expressed their discomfort and anger on Twitter:

1) Burn it all the fuck down

2) Imagine this actress is three years older, and it's unscripted nudity. https://t.co/KYps0SGinM — Kate Harding (@KateHarding) November 4, 2017

The two grown men that created Stranger Things forced a child to kiss another child while they filmed. — Aura Bogado (@aurabogado) November 4, 2017

is it just me that got uncomf w/beyond stranger things where they kinda forced the kids to kiss despite the actresses not rly wanting to — korein🍀 (@koreinkorein) November 3, 2017

So fucking not ok.

‘Stranger Things’ Creators Pressured Child Actress into an Unscripted Kisshttps://t.co/VG3rpL9ahu — Melissa Silverstein (@melsil) November 5, 2017

That pissed me the fuck offfffff. — B B Wolfe, falcosnek (@BBWolfeVox) October 31, 2017

With all the sex crap in Hollywood now

Beyond Stranger Things

Kids talking about the kiss scenes

Saying it was they’re own idea...

creepy af — FrankieJ (@FrankieJRMD) October 29, 2017

A Twitter thread by Anna Marquardt summed up how many people felt after watching Beyond Stranger Things:

The young actress who plays Max, Sadie Sink, is talking about having a kiss with [redacted] in the last episode. — Anna Marquardt (@ajlobster) October 31, 2017

Duffer bro: "You reacted so strongly to this - I was just joking...you were so freaked out that I was like, 'I GOTTA make her do this now.'" — Anna Marquardt (@ajlobster) October 31, 2017

The director, an adult man, saw that a teen girl was uncomfortable with a situation, which made him MORE EAGER to put her in the situation. — Anna Marquardt (@ajlobster) October 31, 2017

Even if the kiss ended up being a nice moment, that's still not the way to get that moment on film. — Anna Marquardt (@ajlobster) October 31, 2017

I just wish women's completely reasonable fears weren't a source of amusement for so many men. — Anna Marquardt (@ajlobster) October 31, 2017

Mashable has reached out to Netflix for comment, and will update accordingly.