You are in the blacksmith village, just relaxing around, you see nezuko and tanjiro sitting on a bench, The two seem to be talking quietly to each other, but you can hear them...

Nezuko: "Nghnn... onii-chan, I want it again, I can't hold back..."

Tanjiro: "W-wait nezuko-chan, Err... w-we're in public, c-let's go somewhere more private."

Tanjiro looks a little flushed