Amy is anxious when Sheldon enters the apartment.
Sheldon: Amy, what is wrong? No matter what it is, your super hero is here to save your day.
He makes the Superman pose.
Amy sighs and sits on the couch, Sheldon sits next to her.
Sheldon: Don't worry. There is no problem that I cannot fix.
Amy, sarcastic: The pipes are leaking.
Sheldon makes his insecure facial expressions, twitching his one eye.
Sheldon: You better call Leonard for that. He needs to feel needed sometimes, so I will give him the honor. And his middle name is leaky for a reason.
Amy: Forget about that, Sheldon. Tomorrow is Valentine's Day.
Sheldon tries to secretly look on his phone.
Amy: Why do these annual holidays always come to every man so surprisingly?
Sheldon: It's just another day in the calendar when especially flower and jewelry sellers want to take way too much money by fooling women to think that they need this.
Amy gives him a mad look.
Sheldon, a bit nervous: Which we love to buy them because all we want is them to be happy, and we can only be happy they are happy.
Amy smiles.
Sheldon: Come on, Amy. You are a jewel of a person, who blossoms more beautiful than all flowers together.
Amy blushes and smiles all over her face.
Amy: Yes, we need Penny.
Sheldon, once again confused: What has she to do with everything?
Amy: She canceled.
Sheldon, still confused: Did you want to spend Valentine's Day with her?
Amy: I thought you are a genius.
She gets up, walks to the kitchen.
Sheldon: That is the first sentence you said today that makes sense.
Amy: We need a babysitter, Sheldon, and she was supposed to take care of Stephen. Now she called that Leonard will take her to a romantic restaurant, and her Dad will look after Taylor. And Howard and Bernadette - well, I don't want them to babysit.
Sheldon: Will they go to the restaurant at the train station?
Amy: Why would they go there?
Sheldon: Isn't tomorrow all about love? What cannot be loved about trains?
Amy: I have something planned, and I miss the time when it's just the two of us.
Sheldon shocked: You don't love Stephen anymore?
Amy: I do, but there are moments that we should have as a couple. I was planning on wearing my tiara tomorrow, just that, Sheldon, and my princess panties.
Sheldon blushes: But Stephen saw you naked, probably more often than I have. And coitus is natural. He would be sleeping all the time anyway. He is a baby.
Sheldon takes his phone out again and types something.
Sheldon: I have an idea.
Amy: What are you doing?
Sheldon: Shopping.
Amy: You are buying my present right now? You can't be serious.
Sheldon: Oh no worry, they will deliver it tomorrow.
He smiles.
The next day Sheldon gets the package and runs into the bedroom, taking Stephen with him, while Amy was cleaning the breakfast table.
Sheldon: So, you will stay there, just like that and we will surprise Mommy, okay?
Stephen smiles: Doo-doo.
Sheldon: Yes, right? We should go to the trains today. You are such a smart boy.
Stephen smiles.
Sheldon leaves him on the bed, and goes to the kitchen to get Amy.
Sheldon: Come, your Valentine's present is ready.
Amy: What did you do?
Amy walks into the bedroom and sees Stephen crawling into her drawer. She picks him up, carries him, and put her princess panties from his head.
Amy: Mommy's underwear are no toys.
Sheldon grabs the panties and puts it into his pants pocket.
Sheldon: You can give me your present later. First mine. Look what he is wearing.
Amy looks at Stephen and smiles.
Sheldon: He is Cupid. And I placed him into a heart of rose petals on our bed.
Amy: That is so sweet. Thank you.
She kisses him.
Sheldon: Now, lets go to the trains.
Stephen excited: Doo-doo.
Amy rolling her eyes: Fine, because you two love it so much.
Sheldon: Don't you remember our first kiss? We will do that again, just with Stephen being there as well this time, and afterwards, when he is asleep...
He pulls a little part of her panties out of his pants pocket and winks.