@Scp-3125
It was obviously a mistake. Because they both are mares. Female.

I do have a theory though.
Maybe a person who added “male” at the same time with “female” intended it to be “mare” instead. And that would be a correct tag addition.
Just one letter typo.

Why did this have the “male” tag added?

in the name of my sanity,i accept that bottle being imported from trottingham as headcannon

Tell Milky Way we need another deliver.

@Background Pony #0BB7
 
Heh XD

@Dirty Bit
 
 
Vinyl: You didn’t drink your milk…. Octavia.  
Octavia: You drink it. I hate milk. It’s like drinking vomit.  
Vinyl: What are you TALKING about? Milk’s GOOD for you! DRINK it!  
Octavia: Forget it! I hate what I hate! It’s not like I’ll die ‘cause I don’t drink that crap!  
Vinyl: Jeez! And THIS is the reason you’re ALWAYS gonna be the size of a BEAN!  
Octavia: A BEAN?!  
Vinyl: Yeah, a BEAN. Right, Neon?  
Neon Lights Pops out of no where: Just do what she says, Tavi. Drink the dumb milk.  
%%%%%%%%  
I picked Neon as Al because it was the first I had thought of…

Save some of that Mother’s Milk for the Bullet Farm and Gastown…

Vinyl Milk should be a thing!

Under those glasses, she’s making a face like: “What are you looking at bronies? It’s just milk.”

Gotta keep this coat white…

@Soda Fizz  

Para evitar la cruda, toma leche.
 
To prevent a hangover, drink milk.

@Dirty Bit  
A lot more then that, I’m thinking Kamen Rider Blade.

A Fullmetal Alchemist joke can be made here.

Drinking right out of the bottle? That slob!

Octavia: I think that milk is expired.  
Vinyl: …Seriously?

@Joshua  
It’s a habit she picked up from some friends at the club…  

Octavia: You drink milk?  
Vinyl: Of course, Tavi. Gotta do a body good.