This is a tough pick. Both women are beautiful, and I believe they are both ticklish. The thing is I don't care much of Jennifer Lopez as a person. I have heard she is a demanding Diva, and the only difference between a diva and a bitch is money. I haven't heard the same things about Halle, even if she did get bumped a head at an airport once. I mean come on, do you really think Halle and her boyfriend are going to bomb a plane. I guess it all comes down to my mood. If I was feeling playful it would be Miss Berry. If I was feeling cruel and ruthless then I would go with J.Lo. As for where, I would have to experiment with their bound naked bodies until I found the place that makes them scream daddy, and exploit it for hours.