It's scary. Getting too familiar with another person. Knowing just the right way to kiss them and when you've become so familiar with someone's ****** structure that your noses no longer bump and you just fit together. When you know their favorite places to be touched and favorite ways and how to elicit the best sounds. Slipping into their favorite position and simply knowing they like it the best without ever having to say it. It's ******* terrifying, mapping out the geography of their body with your hands and knowing the feel of their skin and every mark on it. Memorizing their body instinctively and naturally going to the things you know they like. Being able to tell, with your eyes closed, the feel of something as simple as the back of a hand or the expanse of a back and knowing it is them, that is their skin. Being used to their smell on you. Tracing over their face with your fingertips and being able to feel it beneath your fingers even when you're apart. Makes it feel like they're a part of you, knowing your body knows their body and some primitive or maybe too advanced part of your brain knows every inch of them, can remember the feel of them in the slightest moment. It's got me scared as ****. You've got me scared as ****.