(I’m gonna do my own take on the later events; hopefully, that’s alright…)
 
Later…  
Discord: Oh, by the way, the young colt from the future is your son. No harm telling you now; damage already done.  
Applejack: Well, well! He grows up handsome, and… (embarrassed) Oh, Celestia, I sincerely flirted with my son.  
(Spike starts laughing hysterically)  
Applejack: WHY IN TARNATION DIDN’T Y’ALL TELL ME!?  
Spike: Because it’s hilarious!  
Discord: You JUST learned about it.  
Spike: And IT, is hilarious!

@8bit22  
Spike: And IT, is Hilarious!

@Background Pony #EACC
 
 
Twilight: You just learned about it.

@Gundlach
 
Spike: [starts laughing hysterically]
 
Applejack: Why didn’t y’all tell me?!?
 
Spike: Because it’s hilarious!

I feel so out of the loop for this tadwell thing

It has a BDSM feel to it, I love it!
 
I need clop of this ship for yesterday!

[Screams internally]

“S-should have known that was coming…from the accent…”  
*applebucked*

Some time later:  
AJ: “Oh my god. I solicited my son for sex.”