单词anal-intercourse
For girls alone, it was also associated with a greater tendency for mutual masturbation and anal intercourse.
仅就女生而言，自慰还和更倾向于相互手淫以及肛交有关。
The riskiest sexual behavior is unprotected receptive anal intercourse -- the least risky sexual behavior is receiving oral sex.
最危险的性行为是没有进行保护的肛交——最低风险的性行为是口交。
Anal sex, while unappealing to some, can be very stimulating to others, and anyone who has anal intercourse must always use condoms.
某些人无法接受肛交，但也有部分人感到很刺激，任何进行肛交的人士都必须要带上安全套。
On surviving pottery depicting erotic art, one-third of it shows hetero-anal intercourse.
在存留下来的描绘情色艺术的陶器上，三分之一都有描绘男女爆菊。
In most cases sexual transmission of HPV is through vaginal or anal intercourse. Transmitting HPV through oral sex is not uncommon.
在大多数情况下，HPV的性传播方式是通过阴道或肛门，但由经口腔传染也不鲜见。
And where some surveys ask Americans about "either vaginal or anal intercourse" , others include a much wider range of activities.
在美国，一些调查问及美国人有关“阴道或肛门性交”的问题，而另一些调查涉及的活动则宽泛得多。
Other teaching packs criticised in the report contain short explanations of bisexuality, anal intercourse and oral sex.
另外一些被报告批评的教学包包括了简短的关于双性恋，性交和口交的解说。
And why do those who do it most often (women who reported anal intercourse in their last encounter) get the most orgasms?
为什么那些（在最后性交中肛交的女性）经常这么做的得到更多的高潮？
In one study (1999), 19 percent of college students agreed with the statement: Anal intercourse is not "sex. "
在1999年的一项研究中显示，19%的大学生认为：肛#门#性#接触不算”做#爱“。
However, homosexual anal intercourse, being an unnatural act, creates a lot of blood.
恋的肛交是一种不正常的行为，通常会产生大量出血。