Aspects of human sexual behavior,Scope ,Sexuality and sensuality ,Sexual relationships ,Cultural aspects ,Social norms and rules ,Types of 
partnership ,Sexual relationships ,The search for a partner ,Locating and identifying potential partners ,The encounter between potential 
partners ,Potential problems ,The fear of rejection Sexual activity and lifestyles ,Different-gender sexuality ,Same-gender sexuality ,Extended 
partnership sexuality ,Auto-erotic sexuality Alternative sexuality ,Coercive and abusive sexuality ,Sexually transmitted disease ,Unwanted pregnancy ,Legal issues related to sexual behavior ,Sodomy and same sex laws ,List of sex acts and practices General ,Specialized BDSM and paraphilia related ,sex treatment, sex medication, sex education