Sheldon's Train

Amy, What are you gifting Sheldon? Penny asked with excitement on her face.

Meanwhile, Bernadette is making drinks for three of them.

Amy looks so happy and says I am gifting him a train trip. Amy is shaking her head in happiness.

Bernadette giggles. Penny looks expressionless.

You are gifting Train trip to him? Are you okay? Penny asked Amy.

Amy laughed hilariously and said I am also asking for coitus on his birthday night.

Penny jumped from her seat in surprise and Sheldon knocked on the door three times.

When he opened the door, Penny says, someone, going to be lucky tomorrow.

The probability of anyone is going to be lucky in your room according to their given knowledge of feeling lucky is extremely like Shrodinger's ... Sheldon is saying this and Penny shuts the door.