SHN-034 - E-cup housewife molested on a crowded train, unable to resist the pleasure

They are selling the four women from the 'Pink Nipple SP' separately. Wouldn't it be more cost-effective to just buy the 'Pink Nipple SP' instead?

It does a good job of showing how she's too sensitive to resist, but there's not much of that 'what if someone finds out' tension.