[Ordinarily, Josuke thinks the truth is better, too. Well, at least sometimes. When things are serious. But right now...he also thinks that it'd be unfair to make someone worry about something that might not actually be a real concern. So it's better, he decides, not to say anything about it at all.]

Hey, now! My family's pretty great looking! And I don't care if this Johnny guy's from another world, I bet any kids he has are gonna be real lookers when they grow up!

[Which is to say, Josuke has never met an unattractive Joestar, so...there's really only one logical conclusion when it comes to looks! And it's that any descendant'll have 'em.]

Anyway, the whole alternate universes thing is complicated and I don't actually know a whole lot about it, so...

[He shrugs. And then...puckers his lips in thought, looking Gyro over as he considers the answer to the man's question. Finally, after a few moments, he shakes his head responds...]

Caesar's got nothing on you, man. His whole aesthetic's way different and while I'm not really into that whole western apparel scene, I really like your spin on it! It's in your face!