Rikka, my childhood friend from back home, moved to Tokyo at the same time as I did. One thing led to another, and we agreed to become fuck buddies with no romance and no kissing—just sex to satisfy our urges. At first, I was thrilled to have a no-strings hookup, but I grew jealous whenever she got close to other men. Rikka never wanted to be tied down, yet I fell for her and became desperate to turn our arrangement into a real relationship. During sex, I secretly pull off the condom and deliberately break her strict no-creampie rule.