i'm not going to insult your intelligence by insinuating that you can't figure out that villain has quads, but...

this is a call normally, right?

Poker Stars
No Limit Holdem Ring game
Blinds: $0.10/$0.25
4 players


Stack sizes:
Kuso: $33.80
Button: $10.90
SB: $25.10
BB: $16.15

Pre-flop: (4 players) Kuso is UTG with
Kuso raises to $1, Button calls, SB calls, BB folds.

Flop: ($3.25, 3 players)
SB checks, Kuso bets $1.5, Button calls, SB folds.

Turn: ($6.25, 2 players)
Kuso checks, Button checks.

River: ($6.25, 2 players)
Kuso checks, Button is all-in $8.4, Kuso calls.

Results:
Final pot: $23.05
Kuso mucks Kc Qs
Button shows Ad Jd

I would bet the turn and then I'd be pot committed and not have to worry about it.