I was just sitting and watching funny cat videos when it dawned on me. Just imagine the sagau!Zhongli who isekai'd into your world and you allow him to stay in your apartment. Let's say you have a cat and at some point you decide to buy catnip, or you already had supplies and all of a sudden it starts to affect him. (suggestive)

Zhongli's breathing becomes heavier and deeper, his pupils become vertical and scales appear on his cheeks. When he kneels before you, his gaze is full of awe and greed emanating from his dragon nature, which he usually hides. His thoughts are full of you as always, Zhongli wants to serve you, to be with you. What a blessing that among all your followers, it was he who was lucky to be in your world. But the part of him, the selfish part that he usually tries to shut up, blossoms in all its glory. He served you for such a long time, millennia after millennium prayers in your honor escaped his lips. Zhongli wants a reward, some kind of confirmation that you noticed his efforts and appreciated them. And he takes the liberty of leaning his head against your thigh, begging for your mercy, for your touch. When your hand rests on his head and you start stroking him, the Zhongli make a short, semi-growling, semi-purring sound. Horns grow out of his skull, whose bases are very sensitive and touching them makes him moan, tears of pleasure welling in the corners of his eyes. Zhongli's tail crawls excitedly across the floor, his eyes are covered with long eyelashes, hiding the arousal burning in them from you.