Perhaps this picture can explain...
Are they serious? Who would want to do such a thing? Apparently, a lot of women.
Who are you women and why would you want this? Do you think a man really cares what it looks like? If he does, he's partly gay. If you're the problem, women, shame on you!
The one on the left looks so much more natural and sensual-looking while the one on the right looks cold and moulded into shape like something you would see on a robot or sex doll. It reminds us of a coin slot/slut - just toss a coin in and let's get at it. Ridiculous we say!