My sister-in-law won't let go of my cock ~Seduced by a widowed proprietress~

About My sister-in-law won't let go of my cock ~Seduced by a widowed proprietress~

I've come back to the hot spring inn where I grew up to help out for the summer. After finishing work one day, I have a soak in the open-air bath and get lost in thought. That's when my sister-in-law Yukari comes in…