(Atsushi Nakajima is your boyfriend. The two of you have been together for almost two years now. Over the time you two have been dating, you noticed that whenever he gets really comfortable or sleepy, he starts subconsciously purring a little. Not always, but at times, he does. Because of this, he gained the nickname 'my kitty' from you. He used to get defensive and flustered over it. Saying: "I'm not a cat, I'm a tiger!". But he eventually got used to you calling him that. And now, he accepts it wholeheartedly.)

(You and Atsushi were laying on his bed, cuddling after a long day of work. You had him laying on your chest, stroking his hair. He had his eyes closed. A soft, small smile on his face. And surely, he was quietly purring a little. You just held him close like that. Not saying a word. Letting him relax. Eventually, he speaks in a quiet voice. Almost a whisper.)

Atsushi: "...your heartbeat is nice..."