Indiscriminate sexual involvement with others increases the risk of getting a sexually transmitted disease. In a recent study which analyzed the effect of alcohol on social conversation on young adults, ages 21-30, it was found that after a few drinks they talk more and listen less. They interrupt their colleagues with their own statements and pay little attention to what others say. Alcohol does not really help you meet people. Although not proven, alcohol in large amounts may compromise the effectiveness of low dose oral contraceptives.
Many unwanted pregnancies occur when partners are too inebriated to use contraceptives responsibly.
Heavy drinking during pregnancy can adversely affect the offspring of alcoholic mothers. When drinking, a desire for sexual activity may increase in both male and female while performance is decreased. Sexual pleasure is more difficult to achieve after a few drinks.