I'm going with the idea that Don's 37 and Charlie's 32.

Mariah Lynn Eppes, age twenty, had a huge problem- A very huge problem. She was in love with her father's co-worker, Colby Granger.

Mariah had been born to Don when he was seventeen. Don had married Mariah's mother Diana, but the marriage had ended when Mariah was three. Don was still in college and Diana had just abandoned him with three year old Mariah and two month old Gretchen Amelia Eppes. Gretchen was now seventeen and in her last year of high school.

Twenty year old Don moved in with Alan and Margaret following the divorce. Mariah and Gretchen came with him, of course because Diana didn't want to be a part of her daughters' lives.

Mariah was now attending college. If she had any trouble with math she went to Uncle Charlie. When she needed help with anything space related, she went to Uncle Larry. When she was younger, she went to her grandmother, father, grandfather, and Uncle Charlie. The only thing she never went to Uncle Charlie for was spelling.

Mariah had been fifteen and Gretchen had been twelve when Margaret Eppes died from cancer. Mariah had been devastated, but she had been the only one able to get her out of the garage during the last three months of her grandmother's life. Because of this, Charlie hadn't been involved so deep in P vs NP and had been there to say good-bye to his mother.

Mariah loved her family. Despite being a teenager when she met them, Megan became Aunt Megan. David became Uncle David. Terry was briefly "Potential to Be Stepmother" in private, but that spot was now taken up by Robin Brooks.

The only one she didn't call uncle was Colby. Mariah was eighteen when she realized she was in love with Colby Granger. She knew she couldn't act on her feelings because Colby and Don were friends. She reacted the strongest about Colby potentially being a spy by declaring his innocence immediately.

Oh, yeah. Mariah Eppes had a huge problem.

TBC

I just started uploading stories today. I had this idea a long time ago. Despite the fact that I press tab a million times, I still can't indent the beginning of a paragraph.