How Twilight Sparkle and Comet Tail fell in love:  
They both new each other for a while before Twilight moved to Ponyville, but they never talked. But, years later once Twilight visited her old friends from Canterlot one of them was Comet Tail. She ran into him at the library. He was studying to become a teacher at Celestia’s school. They bonded over books they have read and she told him all of her stories with her friends. They became really close maybe a little too close and they accidentally kissed. They didn’t see each other about a week until, they decided to talk it out. They started dating shortly afterwards and more and more dates led to them getting married. Twilight got pregnant with two kids Harmony and Dusk.
 
Harmony  
“I’d rather not talk about it if you mind.”  
Parents: Twilight Sparkle and Comet Tail  
Siblings: Dusk  
Species: Female/Unicorn  
Build: Small, thin  
Special talent: ?????  
Occupation: ?????  
Nickname: none  
Age: 18
 
Personality:  
Harmony is a very closed off and depressed pony. When she was born, she was born blind and the doctors couldn’t do anything about. Life was very tough for her because since she can’t see it is very hard for her to do magic and she gave up looking for her cutie mark along the line. She keeps herself closed off from a lot of ponies. She secretly uses dark magic to try to get her sight back which may or may not backfire.
 
Relationships:  
She isn’t that close to her parents especially her mom because she feels like she can’t live up to her expectations of becoming the best alicorn ever.
 
She really isn’t that close to anyone. She does have a teenie tiny crush on Midnight Glow (Luna and Tempest’s daughter).
 
Dusk  
“What I’m too cool for that.”  
Parents: Twilight Sparkle and Comet Tail  
Siblings: Harmony  
Species: Male/Pegasus  
Build: Tall/Thin  
Special Talent: flight  
Occupation: Wonderbolts  
Nickname: Duskie  
Age: 18
 
Personality:  
Dusk is a funny and charismatic guy. He always knows what to say and he thinks he is too cool for anything. But, for a while he is confused with his sexuality. He thinks he likes girls, but then he thinks he likes boys. His passion is to fly and he was finally accepted in the Wonderbolts.
 
Relationships:  
Since he is very confused with his sexuality the one pony that makes him very conflicted is Curtis (Chocolate Cake). Since Curtis openly flirts with Dusk and he doesn’t know what to think.