Leonard and Penny were looking down at their small baby, while holding the other. They could hear the heartbeat and feel the other, but one stopped, they checked, it was B. They panicked, Leonard rushed out the room and grabbed someone, they both ran in, but by then it was too late...

Later on:

They had everyone over at their apartment, greveing the loss. They knew his name, Gabriel. Everyone left and they got a phone call, it was the hospital. They expected horror, but they got joy. Leonard picked up the phone and nodded his head, saying yes every once in a while, he put the phone down with a huge grin on his face, told Penny and she ran out, and banged on the door of 4B, Amy opened the door and Penny's voice shriked in excitement, Howard and Bernadette heard it from the second door and came rushing up, They ran and hugged Leonard and Penny and so did Sheldon and Amy,

"You've got two boys again!"

They were all in happiness and excitement, but all still wondering how the hospital got the death of a baby wrong? It's still a question they are asking.

The Next Day:

They were holding both babies, and Leonard said,

"How about Finley?"

"What?"

"For this little guy, our little fighter, warrior, hunchman!"

"Finn..."

She looked at him,

"Hi Finn!"

They decided Finley Wyatt for Baby B. And Oscar Lee for Baby A.