 According to the Kokashastra, which is the 12th century commentary, or let's say it's the 12th century rewrite of the Kamsutra, it says that the vagina comes in four separate textures. So it can either be smooth within like a lotus, it can be covered in small knots, it can either be full of wrinkles or folds, or it can be rough like a cow's tongue. And according to these textures is how you feel pleasure, meaning that if you understand what is the texture of your vaginal canal, you understand what is the kind of touch that you like, or how much pressure you need to really feel pleasure, or even what kind of thrusting or the pace of thrusting that you need to really bring yourself to orgasm. Is the difference between feeling meh, feeling pleasure, or feeling a lot of pleasure? Now of course this only talks about four different textures. I believe that every single vagina is just slightly different to the next one. Every vagina is individual. But the important question to you is, do you know what is the texture of your vagina?