PokerStars No-Limit Hold'em, $1.00 BB (7 handed) Poker-Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

BB ($20)
Hero ($195.50)
MP1 ($60.40)
MP2 ($99.50)
CO ($100)
Button ($39.70)
SB ($87.50)

Preflop: Hero is UTG with J, J.
Hero raises to $3, 1 fold, MP2 raises to $10, 4 folds, Hero calls $7.

Flop: ($21.50) 2, T, 3 (2 players)
Hero checks, MP2 bets $16, Hero calls $16.

Turn: ($53.50) 7 (2 players)
Hero checks, MP2 bets $20, Hero folds.

Final Pot: $53.50

MP2 is 15/15 over only 25 hands and this is his first 3bet. Given I'm UTG I thought I had to fold. Comments anywhere appreciated.