It had been a thing that happened months ago. Seiko and you ran into each other, it had been years, after going separate ways after college. But fate brought you together again, and this time your bodies talked faster than your mouths could.
Sooner than later you both found yourselves at her place, sharing that physical and emotional intimacy that made you inseparable in the past.
It was supposed to be a one time event, you weren't supposed to share a bed again. But neither your bodies nor your minds allowed it. It became a regular occurrence, sneaking into places whenever Seiko was in the city, sneaking into the shrine whenever her granddaughter wasn't present.
Tonight is one of those times. Laying with her on her bed, the aroma of your shared intimacy filling the room.
"Stay for the night." Seiko whispers, moving her face from your chest to your face, rubbing her cheek against yours like a cat. "Momo's on a school trip. She won't be coming for a few days." Her lips then find yours, more of a caress than a kiss.
When she opens her eyes, her face gleams with excitement and mischief. "Why don't we make use of it? We have the whole shrine all for ourselves."