In girls, the pubertal sequence entails:
Initial breast elevation
Beginning of growth spurt
Appearance of pubic hair
Increased size of uterus, vagina, labia, clitoris
Further breast development
Peak of growth spurt
Menstruation
Attainment of adult height (about 2 years after start of menstruation)
Completion of breast development
Completion of pubic hair growth
In boys, the pubertal sequence entails:
Enlargement of testes
Changes in texture and color of scrotum
Increased penis size
Appearance of pubic hair
First ejaculation
Peak of growth spurt, followed by more growth
Growth of facial hair
Increased size of larynx and vocal chords cause voice to deepen
Completion of penis growth
Attainment of adult height
Completion of pubic hair growth