Cosmic Horror! AU alerudy
Cosmic Horror! AU where Alejandro is fused with an ancient being who feeds on death/sacrifice in a mission gone wrong, and Rudy is the only one who can see Alejandro's change since Alejandro chose to fuse with this being to save Rudy from dying.
This being takes a similar form of Mictlantecuhtli. And Being! Alejandro still loves Rudy but wants to be fed through Rudy. When Las Almas burns with death, both from narcos and the military, the being is satiated. But when Las Almas is particularly peaceful, Rudy can see the hunger in Alejandro, his shadow twitching and shimmering, growing, and then Rudy knows he is fucked that day. Rudy will need to satisfy Alejandro by giving himself-- and by himself that can mean anything. Sometimes quick fuck is enough, but most of the times not so much.
Being! Alejandro wants to give Rudy anything he wants, but also take everything Rudy has-- first he asks to own Rudy's sight so he can see what Rudy sees, then his thoughts so he can know what Rudy knows, then his emotions, his past, his future--
But Rudy will tell him these were the things that Alejandro already owned, which will confuse the cosmic horror part of our poor colonel.
Their fuck is going to be traumatically mind-shattering, Rudy sobbing under Alejandro with just too much stimulation, and Rudy can see and feel something much greater and terrifying than what he can percieve consuming him, entering him, and also soothing him at the same time--
And for Being! Alejandro, whatever Rudy produces, whether it be curse, moan, spit, tear, any bodily fluid-- it's just so adorable and lovable because Rudy is his tiny, fragile, pretty and delicious human, and he doesn't care Rudy making a mess.
We all know cosmic horror ancient beings never can fully understand fragile human minds, and vice versa. Rudy's "wish" that Alejandro always asks to fulfil (He always asks Rudy 'What do you wish for' after Rudy feeds him or satisfies him) is misunderstood and ends up being a total mindfuck. One time Rudy wished Alejandro "I wish you to come back to your past self" and Alejandro just trapped Rudy in an unending loop of their younger past, and Rudy had to beg to get out of the limbo.
Rudy sometimes begs Alejandro to "come back home." Come back to their home, their Las Almas, their legacy they created together. Come back to Rodolfo Parra, and Los Vaqueros, and love them like he used to. Alejandro grabs Rodolfo and hugs him closer, ever so lovingly, but his eyes are cold and distant, inhuman. He does not understand what Rudy means, but he will keep loving Rudy.