Chances are you had your first kiss when taking part in a kissing game -- you know those age-old games, like Spin-the-Bottle, Seven Minutes in Heaven, and Run-Chase-Kiss? These games tend to take place during the transition from childhood to adolescence (and maybe some office parties later in life, but let’s not get into that).
But what about your first “real” kiss in a truly romantic or sexual context? Most people remember their first kiss quite clearly. For many girls, that kiss can prompt changes in a sense of self as a sexual person.1 Other first kisses also are notable. The first kiss in a new relationship is an especially giddy event, the novelty of a new partner lasts for a while, and research suggests that we use that kissing experience to sort those with whom we have good genetic compatability.2 At some point, most romantic relationships pass from the rollercoaster phase characterized by passionate kisses into the steadier and affectionate phase of companionate love.3 How does kissing change during this transition?