Overview:

A man named “Licky” who coincidentally became the twins’ licking dog.
Even today, they wake him up from his midday nap, and make him fulfill their sexual desires.

Characters:

[Kotori]
Wild and outspoken.
She gave the name “Licky” to this guy in the neighborhood and made him help her masturbate.
She promises to give him head in return but always runs off without following through.

[Inori]
Calm and considerate.
When she started getting into masturbation, Kotori introduced her to Licky, and since then they started visiting him.

[Licky]
A licking dog.