In the Nuts

Just when everything seemed to be going well, my flopped set of Kings turns into a boat on the river, but it gives my opponent quads!

PokerStars Game #9097380666:  Hold'em No Limit ($0.01/$0.02) - 2007/03/26 - 10:52:30 (ET)
Table 'Montefiore' 9-max Seat #7 is the button
Seat 1: Me($1.73 in chips)
Seat 2: givusabreak ($5.08 in chips)
Seat 3: Nobdi ($4.28 in chips)
Seat 5: MILFmeister ($1.37 in chips)
Seat 6: estellairina ($3.51 in chips)
Seat 7: DWolf3 ($5.39 in chips)
Seat 8: VinoDivino ($2.68 in chips)
Seat 9: DISH DOC ($1.61 in chips)
VinoDivino: posts small blind $0.01
DISH DOC: posts big blind $0.02
*** HOLE CARDS ***
Dealt to Me[Kc Ks]
Me: raises $0.10 to $0.12
givusabreak: folds
Nobdi: folds
MILFmeister: calls $0.12
estellairina: folds
DWolf3: folds
VinoDivino: folds
DISH DOC: folds
*** FLOP *** [Th 8c Kh]
DISH DOC is sitting out
Me: bets $0.10
MILFmeister: raises $0.10 to $0.20
Me: raises $0.30 to $0.50
MILFmeister: raises $0.75 to $1.25 and is all-in
Me: calls $0.75
*** TURN *** [Th 8c Kh] [Qc]
*** RIVER *** [Th 8c Kh Qc] [8h]
*** SHOW DOWN ***
Me: shows [Kc Ks] (a full house, Kings full of Eights)
MILFmeister: shows [8s 8d] (four of a kind, Eights)
MILFmeister collected $2.67 from pot