Rush poker must be getting to me....

Full Tilt Poker $0.25/$0.50 No Limit Hold'em - 9 players
The Official DeucesCracked.com Hand History Converter

BB: $30.35
UTG: $134.50
UTG+1: $48.35
UTG+2: $43.75
MP1: $67.60
MP2: $110.60
Hero (CO): $50.00
BTN: $63.95
SB: $35.50

Pre Flop: ($0.75) Hero is CO with 3c 3h
2 folds, UTG+2 raises to $1, 2 folds, Hero raises to $4, 3 folds, UTG+2 calls $3
Scary; min raise + flat out of position. Usually a small pocket pair.

Flop: ($8.75) Ks 3d 7s (2 players)
UTG+2 checks, Hero bets $4, UTG+2 raises to $8, Hero calls $4
This is the raise that scares the crap out of me. I have bottom set, but what can he be raising with? I can't put him on a hand that can raise me here other than KK or 77. Is that right? I am so scared of a set over set, but logic says that it's a min bet; call & see another card for $4.

Turn: ($24.75) 7d (2 players)
UTG+2 bets $3, Hero calls $3
I think the only logical hand here is quad 7's, no? He has to have me CRUSHED!

River: ($30.75) 8s (2 players)
UTG+2 bets $5, Hero raises to $10, UTG+2 raises to $28.75 all in, Hero calls $18.75
Ooops! $5 into $31? That's either a bite me bet or he's got crap. Only one way to find out: min raise. Now his auto shove at least confirms that he doesn't have quads. The reason: he's min re-raising or 2x-ing... not shoving. Logic finally prevails in my head and tells me to call.

Final Pot: $88.25
UTG+2 shows Kc Ah (two pair, Kings and Sevens) - AK; not a hand I put him on!
Hero shows 3c 3h (a full house, Threes full of Sevens)
Hero wins $85.25
(Rake: $3.00)