Homegame mistake

[Ixian Hand]

$1-$2 homegame: loose game amongst a diviersified field, 6-handed:

UTG ~$110
MP ~$160
CO ~$100
BTN ~$80
SB ~$80
BB(hero) ~$160

5 callers around to me in the BB. I hold 9d9s. Raise an additional $5. 5 callers. Pot = $42

Flop: 4c 6s 9h
SB checks
BB(hero) bets $10
Everyone folds to BB(hero).

I think this bet on the flop was a big mistake. I should have realized that showing strength on such a weak board, especially after a preflop raise, was going to chase out any action. Checking with the intention of c/r or c/c would have been best to continue building the pot when I have flopped top set on such an otherwise innocuous board. Or giving a free card and allowing someone to make an overpair would have worked nicely. My biggest regret of the night. Any thoughts?