Sorry, my PTs gone strange so I'll describe the hand.

50NL
UTG posts blind. Everyone else folds to me on the button with A9 os. I raise to 2.50. Both blinds fold. UTG calls.

Flop comes 239 rainbow. I c-bet 5. UTG pushs all-in. assume 100bb.

I played with UTG the previous day and he seemed solid, don't know if he has any notes on me, if so he will know I'll c-bet this flop about 99% of the time.

How much does this change if I have 10 10, JJ?