Sex Friend Osananajimi: Shojo to Doutei wa Hazukashii tte Minna ga Iu kara - The Animation

Childhood Friends with Benefits: It's Because Everyone Says That Being A Virgin Boy or Girl is Embarrassing

After more than 15 years, a fateful encounter at a highschool reunion brought 2 childhood friends back together to reminisce about their three years spent together. they were each others' 'first time' and more than sex friends but less than lovers.