Does this look like a full house, a str8, a 2, or a missed flush? The more I look at the HH the more it looks like a missed flush? Wouldn't a set/house have raised me somewhere?
FWIW, villain is loose aggressive(playing half his hands), but has only been sitting for 2 orbits. He does not seem very good. He already doubled up with QJ on a rivered straight, where he pushed $9 into a $2 pot. The board was paired and trip K's called him.

PokerStars No-Limit Hold'em, $0.10 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

Hero ($17.35)
CO ($10)
Button ($4.80)
SB ($9.90)
BB ($3.40)
UTG ($20.80)

Preflop: Hero is MP with A, A. CO posts a blind of $0.10.
UTG calls $0.10, Hero raises to $0.6, 4 folds, UTG calls $0.50.

Flop: ($1.45) 2, K, 9 (2 players)
UTG checks, Hero bets $1.4, UTG calls $1.40.

Turn: ($4.25) T (2 players)
UTG checks, Hero bets $3.5, UTG calls $3.50.

River: ($11.25) 2 (2 players)
UTG bets $15.30 and is all-in, Hero ??