Generally males need at least 30 seconds of foreplay; many females need at least 30 minutes of foreplay before they are ready for sex. (Pease, Barbara and Allan. Why Men Don’t Listen and Women Can’t Read Maps. p 213-215. NY: Broadway Books, 1998.)

Males tend to skip foreplay in favor of reaching the goal of orgasm. Females favor the pleasurable process of foreplay. Males may reach climax with 2-3 minutes of genital stimulation; females need an average of 18 minutes. (Gray, John, PhD. Men, Women and Relationships. p 95-96. OR: Beyond Words Publishing, Inc., 1990-1993.)