Female macaques form intense bonds with each other and are serially monogamous, meaning they only have one sexual partner at a time. However, they have several of these relationships during each breeding season. Female macaques engage in sexual activities such as genital stimulation and vocalize their delight in forms of cackling sounds. Males also take to homosexual play but tend to leave their partner soon after, making it what we call in the human world a one night stand.