In Rosewood, there's no such thing as twist that's too out there; sometimes we think theories are too crazy to be right, only to be blown away when they actually happen on the show. That's why we like to dive into the world of fantastic Pretty Little Liars fan theories every week to bring you concepts that are totally outside the box, but are just so interesting, they might even be right!

The Pretty Little Liars Halloween episode was all about finding Ali and suspecting Ezra, so this week we're going to talk about a theory that's about both of these key characters: What if Ezra got Ali pregnant?

This is a theory we've seen batted around by several fans, and this Tumblr user sums it up quite well. Basically, it boils down to several disparate facts that can come together to make one shocking potential reality:

1. Ali was pregnant. Mona claims that Ali's journal says that this turned out to be a false alarm, but that could be a lie, either on Mona's part, or on Ali's (hey, it's Alison. She totally might have lied in her own journals.)

2. Ezra got someone pregnant, and his mom paid her off. He claimed that person was Maggie, but...

3. Maggie was not actually pregnant with his kid. Ezra seemed shocked when he found out Malcolm wasn't his som, but now we know he's as good a liar as anyone in Rosewood, so maybe that was an act.

Add these together, throw in a dash of "Ezra might be 'A' and/or Board Shorts" and suddenly, we start to wonder if the story Ezra and his mom told about Maggie actually happened a few years later than Ezra's high school years, with Ali.

Of course, that would require Ezra and his apparently estranged mother to be in cahoots to one degree or another, which seems unlikely. However, now that Ezra is suddenly a potential bad guy, we don't know what to believe about him anymore, so it's possible.

What do you think of this theory — completely crazy, or potentially true? Do you like the idea, or is it too wacky? Sound off in the comments below!

Find Pretty Little Liars spoilers here.

Catch the Pretty Little Liars Season 4 winter premiere on Tuesday, January 7, 2013 at 8 p.m. ET on ABC Family.

Credit: Celebified Photo: Tyler Blackburn Of Pretty Little Liars Fame Says He's Not Leaving "haleb" Behind With His Move To Raveswood!