Ho-hum a 10-high straigh flush

Last night at 180 player $4.40 I played 6c 9c in the SB at the 10/100 level after 2 others had already limped in. I flopped the inside draw to the straight flush, which is 12 outs. As first to act I lead bet the flop, and I lead bet the river for the same amount without improving. A couple players stayed with me, and my magic 7c came on the river. I bet double the amount of my lead bet and was fortunate to get one caller. The caller must not have had the ace-high flush, or else it was a decsent player.