My boyfriend at the time (now just my best friend), in the back seat of my sister's car.
This is technically not my first kiss, but it's my first kiss with meaning. We had just gone to see a movie with my sister and her two kids. I was in the backseat with him and one of my sister's kids. It was a small car, so I was halfway turned towards my boyfriend with my legs over his lap. We were talking and the radio was up and our conversation sort of stopped and he just looked at me and held my hands, and then he leaned down and kissed me right there in the car with my nephews and older sister. But it was pretty perfect, it was only about 2.5 seconds, but the night sky was gorgeous, music was in the background, and we were really close.