Raise the turn and fold to a 3bet???

[YanMTL]

Here a hand payed on Ipoker and i was not sure of the best play on the turn. The SB is a pure calling station, he overcall with third an even forth pair but have only 80 hands with him. UTG is a winning player, i know him very well and he knows me also pretty well. Lot of respect between us.

Preflop (5$-10$ 6 handed)

UTG raise, 3 folds and SB 3bet, i cape in the BB with K [img]/images/graemlins/spade.gif[/img]K [img]/images/graemlins/diamond.gif[/img], they both call.

Flop is : Q [img]/images/graemlins/diamond.gif[/img]6 [img]/images/graemlins/club.gif[/img]8 [img]/images/graemlins/heart.gif[/img]

SB bet, i raise and they both call

turn is 8 [img]/images/graemlins/club.gif[/img]

SB donk again, what's the best play here?

I really don't like the calling station donking here again and i don't like UTG to still be in the pot after i caped preflop and raise on the flop even if he had 7.5 : 1 on the flop, he must know i have AA or KK or QQ cause AK, JJ and TT i don't play it like it.

Here what i though:

I know for sure that they don't have 66 cause UTG would fold 66 when capped and the calling station would just call with it, so only 88 or QQ is ahead of me here so that 4 possible combos.

SB can have A [img]/images/graemlins/club.gif[/img]Q [img]/images/graemlins/club.gif[/img] and play the same way or any AQo, that 12 combos, for UTG, AK is possible, also JJ or TT but i really notsure for these hand. So i think it's a raise here but should i fold if 3bet by UTG?, by SB?