Anyone play this different?

[rkidwell]

After reading Doc's and others replies about betting the flop here with flopped top pair in an unraised pot where no one has shown any strength yet, I have a question. What if the situation were slightly different where the SB bets into us here on this flop? SB's range could be huge considering SB only put in part of a bet to see the flop. Do we think SB has a K with a bigger kicker, a set, 2 pair, flush draw, etc. and fold the flop? Or is this thinking simply MUBS and you should call or even raise here? Thanks in advance for any advice on this kind of situation.