许多男人喜欢接受，但不太喜欢给女人口交的回报。
然而，最近的一则新闻可能会让他们重新思考这种懒惰：一项由美国联邦调查局（FBI）开展的研究。 约翰霍普金斯大学 在美国，发现乳酸菌可以通过对女性进行口交获得。
对于那些不知道的人来说，乳酸菌是对人体有益的细菌，是健康的盟友，可以在酸奶和其他食品中找到--还记得雅酷吗？
See_also: 认识巴西家庭，他们在家中与7只成年老虎生活在一起这些细菌维持着阴道的酸度，据研究人员称，大约70%的阴道液是由5种具有益生菌潜力的乳酸菌组成： 脆皮乳杆菌、詹森氏乳杆菌、英氏乳杆菌、加塞乳杆菌和雷特氏乳杆菌。
然而，值得注意的是，益生菌在定期食用时是有效的，而且每个妇女都有独特的阴道菌群，产生不同数量和种类的乳酸菌。
另一个注意事项是，正如乳酸菌可以通过口交传播一样，性传播疾病也可以。
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