Word Count: 605
Summary: They are extremely ticklish. All of them.
Disclaimer: I don't own The Big Bang Theory or the characters.

They are both extremely ticklish. They don't remember how they found out about that, but it was a fact that they both knew about. Leonard is almost certain that he learned she was ticklish when her dad showed him a video of Penny when she was younger, but it might have been before that – he's not 100% sure. In that video, Wyatt and Susan were both tickling her and she fell on the couch, laughing. She couldn't stop laughing, and crying, and occasionally it was heard a "stop tickling me", but they didn't stop. Not even when Lisa started to do the same to her. The video was over when Randall decided to join his family, and let go of the camera.

Since that moment, Leonard never stopped tickling Penny, especially when they were alone and he wanted to watch one of his movies or something that Penny didn't want. He would just say that he would start tickle her, and she would run away from him already laughing. If anyone had opened the door in those moments, they would find Leonard chasing Penny, both laughing hysterically.

Sometimes he was able to catch her, and they would both giggle uncontrollably even if no one was being tickled.

Penny doesn't remember when and how she found out Leonard was ticklish. She does remember, however, that it was when they were just friends. She used that tactic plenty of times to get him to help her with furniture, shopping or even advice. Sometimes those advices she asked for were about guys, and when she started to think about it, Penny regrets ever asking him about that. It must have been weird and uncomfortable. It wasn't just him being uncomfortable with human interaction.

She likes to tickle him when she's bored and he's watching something on TV. Penny just plops on the couch and with a mischievous smile, she slowly approaches him, and when he least expects, she starts to tickle him. That makes them both laugh too much, and there were too many times where that tickle fight began on the couch and ended on the floor.

Eventually, when the kids are born, the tickle fights continue, whether it is because they seem sad or just because they don't want to get up – Leonard still has to wake Penny up using this method sometimes. Penny and Leonard will forever remember the day that Maya and Ryan tell them that Lily is sick because she's not ticklish on the feet like they are. The expression of horror in their face was priceless, and both parents will forever regret not taking a picture of their faces.

In the Hofstadter household, the five of them are ticklish, and soon they all learn what spots makes each family member giggle the most. It wasn't weird to find the five of them tickling each other when someone entered the house – especially when the kids are younger, because when they grow up, they are all a bit embarrassed about their ticklish "problem".

But still, it's a great way to make someone laugh and cry.

So, both parents use that tiny, almost insignificant fact they know about each other a lot of times, but especially when one of them is sad and the other doesn't know how to cheer them up. Even if they don't end up being happy all of the sudden, they smile or laugh, and that's good enough.

Because even though sometimes all you need is a hug or a good cry, sometimes laughter is the best medicine. And what other better way to laugh than your loved ones tickling you.

The End

(For those who don't know/remember Maya, Ryan and Lily are their kids. I named them like this. Maya is the oldest, Ryan is the middle child and Lily is the youngest.)

I finally decided to get back on writing some Big Bang Theory stories. After three weeks of watching all my other shows come back except for TBBT, it hit me that the show isn't coming back. I knew that as soon as I realized there was no season 13, I would get back to writing. And I was right.

I have a few stories that I wrote a few months ago that I will eventually publish, when I stop being lazy and finally write them down on the computer. I have them on a notebook, because I wrote them during math class. Until then, hope everyone sticks around to read everyone's stories. I have to read them, I stopped a few months ago.

Anyway, hope everyone liked this little story!