I don't have so many of these in my bookmarks, apparently, but I dredged a couple up:
Persistent Incompetence by
MlleMusketeer
Starscream has a crush.
He deals with it badly.
Why doesn't Megatron ever actually off Starscream? Well...
Prowl decides to stop hiding his relationship with Jazz and does so with a vengeance. Jazz is delighted. Smokescreen is amused. The rest of the Autobots get the shock of their lives.
Don't ever make Prowl decide he has something to prove, Tracks. ^_^
Lab Partners by
Celaeno
In which GLaDOS gets the best surprise ever, Shockwave gets a kick in the pants to solve the ‘whoops the AllSpark exploded and our species is going to die out' issue, and the Oracle Turret keeps being dead-on (but obtuse).
I originally clicked on this for the 'what the - ?' factor and that's how I wound up accidentally buying the GLaDOS/Shockwave pairing.