Pfft, if you're doing it for the gals to have eye candy, we could care less about the package size. Make it an **** size slider and then we'll be on to something.
Girls like gigantic asses? Why was I not told this?
Guys have smaller butts than women because you don't have wide hips. Plus they're more muscular. That's the attractive part.
But if we're adding **** sliders, we'll need to talk about ab sliders as well.