2-4 TT donk bet into Hero on turn after Hero 3bet the flop

[Yoshi63]

*GRUNCH*

Wow, I'm stumped. I think maybe raise, to get MP2 off their likely overcards. If it gets 3-bet, I want to say fold... but that might be nitty considering he could have A9 with the As. Problem with calling down is that any A-J river has a good likelyhood of beating you. Don't think folding is an option here, since the pot is large.