I was today in a very similar spots two times. I raised with JJ oop, and my opponent made a standard sized 3-bet. I called. In both hands there was only low cards on the flop, and a 9 in the turn. My opponent bets all the three streets in both situations. In both hands I was against a regular, but not the same one. In the first hand my opponent had AA, in the second hand my opponent pushed on the river with AQ. I called in both spots, because I have a gut feeling that at least in the skypoker people do not like to give up in 3-bet pots if they are aggressors pf. According to pokerstove our JJ is solid 54-57% favorite against our opponents range, if he bets three streets with AK and AQ (and of course 99, TT, JJ, QQ, KK, AA + some random bluffs).

The problem is, that our opponent is betting with range advantage and he can force us to fold almost every time. I suppose that average regular in NL20 is 3-betting something like 5-8% of his hands, and maybe 8-12% from the button vs late position raises. So, we almost never have a set there, because we fold small pairs if the opponent 3-bets IP. In theory, he should put all the pressure he can to us, because we do not have AA, KK or QQ because we would 4-bet with those hands, but our opponent has those hands in his range, right? This is is super akward situation, escpecially OOP.

So, should we have something like black aces, kings and queens in our calling range to defend against this? Or, should we start to 4-bet with hands like TT+ and add some bluffing hands like AQ and KQ to balance our 4-bet and calling ranges against 3-bets?