Caesars 2-5-10: KK vs. Dr. Amir

[TrueBritt]

Caesars Palace 2-5 game with a forced straddle
Villain is Dr. Amir Naseeri, the superdonk from HSP. He's super-loose-aggressive, and he knows I'm a pro.
I have $2600. He has me covered.

Amir limps UTG
Everyone folds to me in SB
I raise to 60 with KK
BB calls
Straddle calls
Amir reraises to 450

With AA, I would reraise to 1000 and shove any flop (or, if the flop was uncoordinated, I might check the flop and shove the turn).

With KK, however, I am concerned that an A might flop, and then what do I do?

Is this a valid concern, or should I play KK the same way I play AA here?