5/5 TP no kicker

[felson]

Live 5/5 NL, 200-500 buyin. My image should be good, since I have run 200 up to 600, but I don't think anyone is paying attention. That is because the game is good and loose. Everyone in the hand has ~400-600.

An MP limper, and then I limp in MP with A8s, and there is a limper behind. 5 to a flop of AK7 rainbow, none of my suit. Checked around. Turn x, blinds check, MP bets 30. I min-raise to 60, which will be the last money I put in unless I river an 8 or maybe an A.

EDITED to include flop action.