Hajimete no Orusuban episode 2

On a cold day on winter, I met a twin girl, Shiori and Saori who lives next door to me, Shiori is a shy girl and quiet girl, while Saori is very aggresive and full of curiosity.
Lately their mothers often asking me to look after them ,that led me to have a family-like relationship with the twin.
Recently I’m curious about naughty things , Shiori had a cooking class and Saori had a basketball club practice, and there was no day when the two were at home together.
Well, what kind of fun is it going to be?