Soft Kitty is a song Sheldon's mom sung to him whenever he was sick as a child. Today, he still requests someone sings it to him whenever he's sick. Over the seasons, it has become a Penny-and-Sheldon thing, because they are the only two characters that sing this song to each other.
Whether you have a similar sick song that gets sung to you, or your a fan of TBBT and like the Soft Kitty graphics, this exclusive assortment will speak to you! Get the latest Soft Kitty merchandise at the official Big Bang Theory Store on CBS.
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