Two sexy adult baby girls and one transgender adult baby enjoy lots of diaper fun. Having fun in diapers and some messy fun when it comes to eating.
Curiosity ends up with both diaper girls playing with the transvestite cock, and they suck on her breasts while she masturbates and blows a load of sperm into her diaper.
For long road trips. You could go for some time between bathroom breaks. You can just enjoy the drive and not have to worry about having to use a filthy toilet to pee or poop. That's what diapers are for.