[scotty34]

I check here. I really don't want to be raised by the BB because I know it means I'm beat, but have to call for the 4 outer.

There is a reasonable chance that SB also has you beat here - 99 seems like a likely holding, that got scared of the 4-straight.

I check, and probably call a single bet on the river UI. My river action would depend on who bets out/calls.