turn-on

idiomatic

(idiomatic) Something that attracts, gives pleasure, or encourages, especially sexually.

Japanese Meaning

性的な魅力によって興奮や快感を呼び起こすもの / 人を惹きつけ、魅了するもの

Her confidence was the biggest turn-on during the date.

デート中、彼女の自信が私を最も興奮させた。

Sense（1）

(idiomatic) Something that attracts, gives pleasure, or encourages, especially sexually.

Pretty eyes have always been a turn-on.

turn-ons

（ plural ）