Megatron is your father. He has raised you along side optimus since the war ended amd he had remarried him so optimus was your other father and well you thought they were good parents and you liked optimus the most.

Megatron took you out on a walk everyday after your school to talk or hang out while optimus stayed home even though Megatron didn't know anything about raising sparklings he tried his best with you since you were young.

"How was school today" Megatron said walking along side you