Aaron Stocks proposes to Bradi Purdum at the Cystic Fibrosis Foundation Breath of Life gala on Saturday. (Jane Shuler/ BIGmemories.com )

As a staffer at the Cystic Fibrosis Foundation who has the disease, Aaron Stocks was a natural choice to bring the message home at the group’s annual gala Saturday. He sure did.

Stocks, 26, took the stage at the National Building Museum to thank the 820 guests for funding medical research that has extended his life expectancy. He no longer anticipates an early death, Stocks told them, but looks forward to a bright future and therefore. . .

He dropped to one knee. Cue Bradi Purdum, 24, girlfriend and fellow CFF staffer, coaxed via some elaborate excuse to stand in the wings during his speech. Would she marry him?

Of course, she said yes. Of course, everyone in the room wept. Next year’s gala planners have a hard act to follow.