16 Years

T.R. Knight, 35, and Mark Cornelson, 19, debuted their relationship at the 16th Annual Elton John AIDS Foundation Oscar Party in West Hollywood, California, Feb. 24.

“Debut” means they’ve been at it for a while. I know you’re fresh out the closet T.R., but that still doesn’t make you 18.

Not Gross:

15 Years

Demi Moore, 45, and Ashton Kutcher, 30, (at the Hollywood Domino Tournament hosted by De Grisogono at the Beverly HIlls Hotel on Feb. 21) tied the knot in Sept. 2005.

Yes, we were shocked when he heard, but he was well into grown when they met, even if he didn’t always act like it.

Gross

(especially with that babydoll preggo dress on)

12 Years

Milo Ventimiglia, 30, revealed his crush to his Heroes co-star Hayden Panettiere, 18, (at the Governor’s Ball following the Emmy’s in L.A. Sept. 16), “the minute she broke up with Stephen Colletti,” a source close to the actress tells Us.

Umm… Milo? I know you look like a prepubescent 14 y/o boy, but you’re not. Stop that. Ew.

Shouldn’t be gross but it is:

25 Years

When Michael Douglas, 63, met wife Catherine Zeta Jones, 38, (at the 9th annual Michael Douglas & Friends Celebrity Golf tournament April 29, 2007), he said, “I’d like to father your children.” They now have two: Dylan Michael, 7, and Carys Zeta, 4.

Come ON!

Don’t Care:

22 Years

Calista Flockhart, 43, and Harrison Ford, 65, (at the 16th Annual Elton John AIDS Foundation Academy Awards viewing party in West Hollywood, California, March 9) met at the 2002 Golden Globes. “I’m in love,” Ford has said.

I just… I don’t even.. Lord give me strenf. Age is the LEAST of their problems.

Was gross but it’s pretty cute now:

12 Years

Beyonce, 26, and Jay-Z, 38, (at the Grammy’s in L.A. Feb. 10) have collaborated on hits “Bonnie & Clyde,” “Crazy in Love,” “That’s How You Like It, “Deja Vu” and “Upgrade U.”

At least he’s made an honest woman of her now! Heh.