いっしょにいると楽しいです。
いっしょにいるとたのしいです。
Issho ni iru to tanoshii desu.
It’s fun being with you.
Good flirting Japanese is usually softer than many learners expect. It is often based on warmth, attentiveness, and a little playful interest rather than loud declarations. These phrases are designed to feel natural and kind.
In Japanese, the most attractive style is often not aggressive. It is observant, light, and considerate. The goal is not to force intensity. It is to create comfort and curiosity.