My Jacegon Headcanon - Tumblr Posts
What if Omega!Aegon was married to Beta!Helaena
one year later Aegon delivered silver-haired twins, Jaehaerys and Jaehaera. Everyone was happy especially Alicent who was so proud that her bloodline gave the “purest” Targaryen-looking kids, not like Rhaenyra’s.
Then there comes Maelor, a healthy strong boy with hair brown as autumn leaves, brown wide eyes as well. Aegon was tired, sweaty but thrilled, holding his baby like he’s made of glass. Helaena was thrilled. Viserys was content. Alicent looked like she’s having a faint.
She declared to the country she’s so happy as a grandmother that the baby got “her hair”. But inside the Keep she kept pressing ageon about who was real father.
Egg: i don’t understand the question. I thought you were happy about my little angel.
Alicent: you think I am an idiot? Who was it? Don’t tell me it was some tramp knight in the flea bottom.
Egg: whatever you say dear mom
Alicent: don’t be smug. You shamed our family as you always do. I won’t let that bastard of yours near the throne. He ain’t getting any title or lands when he comes of age.
Egg: could you please not call my son bastard? He’s my true born. As much as I’m yours.
Alicent: God I wish I hadn’t. Take the bastard boy out of my sight. 
Aegon holding the baby walking to the door when Alicent stopped him, “You need to name Jaehaerys your heir and announce his and Jaehaera’s engagement tomorrow. To enhance their claim and keep bloodline pure like what I arrange for you and your sister.”
Egg: You can’t be serious! They are still babies!
Alicent: The decision is made. You want to disobey your mother and Queen?
Egg: you want to know the real father? Fine i tell you. maelor’s father is the same tramp who fathered the twin. The three of them share the same “bastard” blood. I hope this satisfied you, YOUR GRACE.
He left in triumph, never feeling so well
Meanwhile on Dragonstone:
Jacaerys sneezed*
Lucerys: you okay?
Jacaerys: yah i think someone just called me names.
During the breakfast
Lucerys: Ugh uncle Aegon and uncle Aemond act like assholes last night during the dinner. They totally ruined the family time.
Jacaerys: I agree. I even had a worse fight with Aegon later.
Lucerys: Oh no what happened?
Jacaerys: We just spit upon each other, said many cruel words. We both get really agitated and lost it—
Aegon, with hangover face and messy hair, walking out of Jace‘s bedroom, yawning
Lucerys:
Lucerys: And you fucked? 😨
Jacaerys: blushing …Yeah
Aegon: sitting by the table, smirking We did. Hard.