you feel when your partner fantasizes about..."). Higher levels of guilt were found among women, couples in the 21–29 age range, shorter relationships and marriages, Republicans, and Roman Catholics; lower levels in men, couples in the 41–76 range, longer relationships, Democrats, and Jews. Higher levels of jealousy were found in women, couples in the 21–29 range, Roman Catholics and non-Jewish religious affiliations; lower levels were found in men, couples in the 41–76 range, and Jews and the non-religious. Sexual crimes Deviant sexual fantasies Deviant sexual fantasies are sexual fantasies which involve illegal, nonconsensual, and sadistic themes. While people with paraphilia have deviant sexual fantasies, it is important to note that deviant sexual fantasies are not atypical and/or paraphilic. DSM-5 defines paraphilia as intense and persistent atypical preferences for sexual activities or targets like spanking, whipping, binding with erotic targets like children, animals, and/or rubber etc. While DSM-5 recognizes that paraphillias don't have to be pathological, psychiatrists still find it difficult to differentiate between paraphilic interests and paraphilic disorders, because the concept of normal of sexual fantasies is subjective. It is based on factors like history, society, culture and politics. For example, masturbation, oral, anal and homosexual sex were once illegal in some American states and even considered to be paraphilic disorders in earlier DSM revisions. When a study used statistical analysis and the Wilson sex fantasy questionnaire to investigate atypical fantasies, having zoophilllic or pedophillic fantasies were found to be rare and only 7 themes including urination, crossdressing, rape etc. were considered atypical. A lot of studies have also found that “atypical” sexual fantasies are quite common as indulging in greater varieties of sexual fantasies increases sex-life satisfaction. For example, in 2011 study found that over half of the older men in Berlin had “atypical” sexual fantasies with 21.8% of them having sadistic fantasies–a prerequisite for sexual murders. Another study found that dominance and submission themes were extremely popular in pornographic searches. Sexual crimes Most research into sexual crimes involve men. Sexual crimes such as sexual homicides are quite rare because most deviant sexual fantasizers never engaged in deviant sexual behaviors and are not at risk of engaging in sexual crimes. Some have suggested that the frequency of sexual crimes is underestimated due to the narrowness of the legal definition of sexual homicides. The investigations of sexual crimes face several limitations such as the "definitions of sexual crimes, how and