2nd nuts facing aggression from donkey

[lacrymosa]

This may seem like a no brainer, but lately I have been calling with the second best hand. Perhaps I need some validation that these things happen. Having said this, don't assume I lost this hand.

a) given stacks, I'm assuming this is an easy call, yes?
b) how about if we are 200BB deep?

Full Tilt Poker
No Limit Holdem Ring game
Blinds: $0.10/$0.25
6 players
Converter

Stack sizes:
UTG: $17
UTG+1: $47.45
Hero: $25.60
Button: $26.30
SB: $57.55
BB: $25.20

Pre-flop: (6 players) Hero is CO with A[img]/images/graemlins/club.gif[/img] T[img]/images/graemlins/club.gif[/img]
UTG calls, UTG+1 calls, <font color="#cc0000">Hero raises to $1.35</font>, Button calls, 2 folds, UTG calls, UTG+1 calls.

Flop: 8[img]/images/graemlins/diamond.gif[/img] 7[img]/images/graemlins/diamond.gif[/img] J[img]/images/graemlins/heart.gif[/img] ($5.75, 4 players)
UTG checks, UTG+1 checks, Hero checks, Button checks.

Turn: 9[img]/images/graemlins/heart.gif[/img] ($5.75, 4 players)
UTG checks, <font color="#cc0000">UTG+1 bets $1.5</font>, <font color="#cc0000">Hero raises to $4</font>, <font color="#cc0000">Button raises to $19.25</font>, 2 folds, Hero ?