The first kiss.
It's special, too special in some cases, actually.
You feel the special, tingly sensation that you have only imagined in your mind.
The feeling of two lips touching each other, the warmth, the taste as you eat your partner's lips, the feeling of being one…
It's an experience that breaks your world. And if this special experience is achieved after a long wait, after suffering for time unknown, after longing for this one sensation of having the partner all to yourself, it has a unique, ineffable feel to it that they can't possibly put into tangible words.
It's special, and it becomes more special from person to person.
People remember their first times, and the feeling when you feel their lips, their tongue, and their soul, for the first time, is always inseparable.