Weird KK hand

PokerStars No-Limit Hold'em, $0.02 BB (8 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

UTG ($1.72)
Hero (UTG+1) ($1.92)
MP1 ($4.98)
MP2 ($1.03)
CO ($3.17)
Button ($3.50)
SB ($4.90)
BB ($3.30)

Preflop: Hero is UTG+1 with K, K
UTG calls $0.02, Hero raises to $0.10, 5 folds, BB calls $0.08, UTG calls $0.08

Flop: ($0.31) 6, 4, 5 (3 players)
BB checks, UTG checks, Hero bets $0.22, BB calls $0.22, UTG calls $0.22

Turn: ($0.97) A (3 players)
BB checks, UTG checks, Hero checks

River: ($0.97) 7 (3 players)
BB checks, UTG bets $0.60, Hero folds, 1 fold

Total pot: $0.97 | Rake: $0

Results in white below:
UTG didn't show
Outcome: UTG won $0.97

ps bet this flop..your Kings are no good by the river so the fold is fine

BTW, what is your question? or is it just a line check?

wasn't really sure what went on in this hand, after two consecutive scare cards came out