"Being a single parent, or any parent for that matter, is a hard job," she told KUTV. "We are all doing the best we can."
She said she sat her son down and asked whether she would prefer that his grandfather take him to the event Tuesday at Arrowhead Elementary School in Santa Clara, KUTV reported.
"He just smiled and said, 'No. I want you to go. You're my mom and dad,'" Kittrell wrote on Facebook.
She awakened Tuesday morning, donned her "best dad outfit," drew a goatee on her face and took her son to "Dads and Doughnuts."
"I was so embarrassed, but I couldn't help but smile when he introduced me to his little friends saying, 'This is my mom... She's my dad too, so I brought her,'" she wrote. "When I went to leave, he ran after me and hugged me tight around my neck and whispered, 'Mom, I know that you'll always be there and do anything for me. Thank you. I love you.' (He) kissed my cheek and ran off."
She told KUTV that her outfit garnered a few strange looks and giggles from the children, but no one said anything to her about being at the event. Her son later said he was teased by classmates because of his mom's outfit, but, she told the news station, "He said he told them that his daddy decided not to see him anymore, so… his mom is
his dad now too."
"I've tried my best to let (my kids) know they are loved, but I wonder a lot if I'm actually succeeding at it," she wrote on Facebook. "I hope he remembers this day (because) I'll never forget it or his sweet words."