Another one....

[Your Mom]

Questionable on every street I think.

20/40, full table. Hijack open raises, no read. CO had posted and he calls another bet. I coldcall with JTh cause the blinds are loose. No good? SB folds, a table captain fish calls in the BB.

Flop is 765, two hearts. Hijack bets, CO calls, I raise, BB calls, the other two call as well. Turn is another 7, which puts another flush draw on board. Checked to me and I bet.
The hijack and CO call. River is another 7. Checked to me. Fire again?