next level pocky game without the pocky

Looks like this is the same couple from https://dynasty-scans.com/chapters/i_was_asked_wanna_have_sex_on_sunday_and_was_horny_for_an_entire_week

The artist's Pixiv lists these two shorts as part of the same series, called 焦らし (Jirashi, meaning teasing/tantalizing). As of now they're still the only things in it.