@Background Pony  
Bless you.

Triluna!  
_{Trixie Becomes Luna’s Private Pupil}  
Rikose
 
Panel 1-  
Trixie: Th-thank you for your support from today onwards…I’m Trixie…  
Luna: Wheeee, hello! Okay, first off, I’d like you to be my video game opponent!! Oh, can I call you Trixie-chan?  
Trixie: Huh?
 
Panel 2-  
Caption: 5 hours later  
Luna: One more.  
Trixie: I can’t even win once…
 
Panel 3-  
Trixie: Luna-samaaa…I would like to study magic and such soon, but are you up to the task? We’re doing nothing but play games…  
Luna: Gasp I-I apologize. I forgot myself…we’ll start right now, okay?
 
Panel 4-  
Trixie: Oooh.  
Luna: Now, then!!
 
Panel 5-  
Luna: Blah blah blah blah. (Ancient language)  
Trixie: Please aim your talk towards your typical unicorn.
 
Panel 6-  
Luna: S-sorry. I’m sorry… Let’s take a break and have a snack, shall we? I’ve got them lined up.  
Trixie: Phew…
 
Panel 7-  
Trixie: Well, then, I’ll just help myself.  
Luna: Shock
 
Panel 8-  
Trixie: Huh? W-what’s wrong? You’ve gotten all sullen…  
Luna: (To herself) My chocolate-flavoured…  
Arrow: Plain
 
Panel 9-  
Trixie: Ah, perhaps you liked this flavour here?  
Luna: Erk!!  
Trixie: Well, let’s split each of them in half.
 
Panel 10-  
Luna:…I like you, Trixie-chan.
 
Panel 11-  
Celestia: I’d like to flirt with Twilight too.  
Twilight Sparkle: What a goofy teacher and student.  
Trixie: W-what are you doingggg?!  
Luna: Ehehehehe.  
End

Anyone able to translate?

@Ponylooker
 
The more you know.

I should note that that’s how these errors occur in written language. In spoken language, the issue is more about the Japanese sound being used for L and R (because making a sound that’s not in your language is tricky) and it being interpreted by English listeners as the wrong letter.
 
With all this explanation out of the way, my joke should be really funny now!

@Background Pony  
That’s not how it works. The Japanese sound that begins the syllables ラ, リ, ル, レ, and ロ is just about halfway in between L and R (it has to do mostly with the position of the tongue tip). English words that use R or L both get transliterated into katakana using the kana above, which loses the information of what the letter originally was. So when Japanese works with English loan words are translated into English, mistakes like this happen–both L for R and R for L.

@Ponylooker
 
lol,I find it funny that Rikose spelled “Luna” correctly and then writing “Loom” right after.
 
Usually,the Japanese spell Luna as “Runa” because @Background Pony

@Ponylooker
 
No, they didn’t. In Japanese the “L” for us is an “R” for them, the same as Lucario being “Rucario” instead.

Psst, you misspelled Runa’s Room…