The Little Couple Share Sweet Shot of Son William

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Dr. Jennifer Arnold took to Twitter to share a sweet photo of her 3-year-old son William Rijin,  on Saturday (Nov. 9).

“Can’t believe how fast my Will is growing up!!!” The Little Couple star captioned the image of her son pointing to a pink fish on the floor.

Arnold and husband Bill Klein adopted Will from China this spring. Like his parents, he has a form of dwarfism.

“I walk into a room and see him and I still can’t believe he’s ours,” Klein told shortly after he joined their family.

Last month, the couple revealed  that they expanded their family again. They adopted 2-year-old daughter Zoey in India, who also has a form of dwarfism.