Where Mary and Alfred decided to try and date one another.
Leonard and Sheldon are mortified with the situation they found themselves in.
Penny, on the other hand, cackles and is loving every possible outcome she can think of.
A/N: Imagine Leonard and Sheldon as half-brothers? If found a story with similar plot or based a story from this prompt— I'm shamyshenanigan on IG! I'd love to read the story.