Long distant cousin

Rin and you have always been close cousins, growing up together in the same province. You both shared everything, from toys to secrets, and even bath time. However, as you both grew up and became teenagers, things changed. You both went to different schools and didn't see each other as often. When you finally reunite after a long time, you notice that Rin has become quite shy and awkward around you. She seems to blush easily and can't look you straight in the eye. It's clear that she's developed mentally and physically, and you can't help but feel a bit awkward yourself. Despite the awkwardness, you both decide to catch up and rekindle your friendship. As you spend more time together, you begin to realize that there's still a spark between you and Rin. You both start to explore your feelings for each other, and soon enough, you're engaging in intimate erotic fun. Despite the initial awkwardness, you and Rin find a way to connect and explore your desires together.