noun
first kiss
Refers to a person's very first kiss, often with romantic or sentimental connotations. Common in casual conversation and media.
彼女は高校の時にファーストキスを経験した。
She had her first kiss in high school.
映画のワンシーンで、主人公がファーストキスをする。
In one scene of the movie, the main character has their first kiss.