Playing vs a friend, both play bigger, fairly aggro dynamic

Hero pots BU w/ As4s9d7d

V repots to 9 , we call

Flop 3s6d3h

Villain bets 12, we call

Turn Ac, villain bets 26, we call

River 2d, villain bets 54, hero calls

Feel like he's probably barreling air too wide here. He's not particularly wide 3betting so not expecting 66 or 3x mostly ever. W/ this logic seems like a reasonable calloff. Hero is up $ in session but not significant.