Im An Opportunistic Princess InCharge of Solving Things

Princess Octavia was a high school girl until she was reincarnated into her beloved BL novels world
The fact that shes able to see her brother the main character and his lover so closely is a good thing but both of them are male
If so wont there be trouble with future heirs
Theres no way theyll make her take a political marriage to offer them a child right
I dont want to be a character whos taken advantage of like that If this is how it would be I will surely find my own partner to be happy