$10 NLHE 6-max: UTG KK vs AA against an unknown

Been getting a lot of this lately KK vs AA. Starting to get me down a bit, to the point where I'm wondering if I can ever fold KK pre?
If I'm raising from UTG and then entering a 3/4/5 bet war surely this can only mean one thing?
I suppose I can't 4bet fold though, meh.... just meh!!

poker stars No-Limit Hold'em, $0.10 BB (6 handed) - Poker Stars Converter Tool from http://www.flopturnriver.com

MP ($17.15)
CO ($10) - VPIP: 33, PFR: 25, 3B: 20, AF: 0.0, Hands: 12
Button ($10)
SB ($10)
BB ($8.15)
Hero (UTG) ($19.54)

Preflop: Hero is UTG with K , K
Hero bets $0.30, 1 fold, CO raises $1, 3 folds, Hero raises $1.90, CO raises $5.40, Hero raises $17.34 (All-In), CO calls $3.60 (All-In)

Flop: ($20.15) 2 , 2 , 10 (2 players, 2 all-in)

Turn: ($20.15) 5 (2 players, 2 all-in)

River: ($20.15) 4 (2 players, 2 all-in)

Total pot: $20.15

Results:
Hero had K , K (two pair, Kings and twos).
CO had A , A (two pair, Aces and twos).
Outcome: CO won $19.24

Again, your 4bet is kind of small, so small it almost looks stronger than a $2.20-$2.50 4bet, which I think would be better.

I'm never folding KK pre against an unknown with 100bb stacks, never.

there are definitely times to fold KK pre but probably not here. Ya you get KK vs AA in streaks but you will get AA vs KK a lot too and have KK vs QQ/AK enough to be profitable. And KK vs AA is 18% so its not like youre losing every time. Think long run and keep playing.

i was in a similar spot live except my gangster self flatted and squeezed value from QQ when the flop was low and AA was a shortie

UTG vs CO against a possible semireg, never folding KK preflop.

good play but 4bet could be bigger.

I'd never fold here. Maybe I'd flat vs some villains but this guy we stack this for sure.