Logan Stevenson, a dying two-year-old, served as the best man at his parents' wedding on Saturday in what can only be described as a bittersweet moment.
Sean Stevenson and Christine Swidorsky tied the knot after the bride walked down the aisle with Logan, who suffers from a rare fatal disease.
"This is our dream come true. All our family together and we're celebrating, the celebration of my son's life and the celebration of our marriage," Swidorsky said.
Logan suffers from Fanconi anemia, which often causes cancer.
He was diagnosed with acute myeloid leukemia at 14 months and had a stem-cell transplant a year ago. He lost one kidney to a tumor in March and now has a mass on the other.
Last week, doctors told the couple the boy had 2-3 weeks to live.
The wedding, an intimate backyard affair shared with family and friends, was held on short notice, thanks in large part to donations from their Pennsylvania community.
Swidorsky's 13-year-old daughter, Isabella Johns, served as a bridesmaid, while the couple's 1-year-old daughter, Savannah, served as flower girl.
The best man wore a tan pinstriped suit and was with his parents as they said their vows. The newlyweds told NBC's Today of the experience:
"We had been planning a wedding. We were starting to look for halls, but we decided to have it now so Logan could be a part of it, so he could be in the pictures."
"So it could be something our family did together."