Types of anal intercourse may also be part of lesbian sexual practices. Factors predictive of ache throughout anal sex include inadequate lubrication, feeling tense or anxious, lack of stimulation, in addition to lack of social ease with being homosexual and being closeted. In a 2010 scientific evaluate article of heterosexual anal intercourse, anal intercourse is used to particularly denote penile-anal penetration, and anal intercourse is used to denote any type of anal sexual activity. Anal sex or anal intercourse is generally the insertion and thrusting of the erect penis into a person’s anus, or anus and rectum, for sexual pleasure. Often referred to simply as anal sex, anal intercourse is sexual activity that entails inserting the penis into the anus.