Armin's Mission

What if the wall didn't break, what if there are Titan's outside the wall but couldn't come in. Carla married to Grisha Yeager having a kid named Eren Yeager. Carla who has a fine body, her life which was full of happiness and fun, unfortunately the problem in her sex life began to hit. Grisha who is a doctor couldn't find the time to come home as he is busy in his clinic. Just like that one day, when Eren and Armin went to gather some sticks, Eren brought a book which he later explained that Carla would read every night. little did they know, it was porno she was reading, and thus Armin's mission began... It's a R18 story of Armin, Eren and Carla as main Casts. it's a cheating type but it's won't leave a scar in your heart.