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Old 08-02-2011, 09:44 PM   #1
vbvbe3402
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Default 阴茎的勃起角度

阴茎勃起的角度,约与水平成20°--40°角,巧妙地刚好与阴道所成的角度相同。

射精乃是一连串瞬时短暂的动作,射精发生的过程。其过程之迅捷,与发射火箭似可以拟。事实上,射精可说是射 入"内太空"的高速火箭。

阴茎可测量出阴道内的温度、阴道与阴茎的摩擦力、阴道壁对阴茎的压力,以及阴道分泌的滑润液体多寡等等。以 便阴茎能运输更多的血液到阴茎内,加强阴茎皮内刺激感受神经的程度。当性行为正在进行时,神经刺激在性器官 以及中枢神经系统之间,来回传导,而且不断加强,所有的性刺激都归纳于此体系之中。欣赏对方的娇态,爱抚她 ,或被她爱抚,都能使大刺激,盟特

在最后紧要关头时,受刺激而紧张的神经突然射精传性交双方迅速进入性高潮。

射精时,尿道自动封闭,才能致使尿流溢出来。此时,前列腺、精囊、睾丸等的分泌物,互相混合。男人的骨盆肌 肉急剧收缩,健尔马足疗机第三代,使男性器更加深入阴道里;同时还不自觉地懒惰起来,使身体向前移。在这时,男人几乎失去了知觉,到了浑然 忘我的境界。一股内在的推力把约1/4盎司(英制重量单位,是1磅的1/16)的精液射入阴道内,大约有6阵之多,过了10秒钟后,便大功告成。

在1/4盎司的精液里,光波炉批发,约有几亿个精子。理论上讲,一个人可以做地球总人口500倍之多人口的父亲。事实上,盟特新奇特厂家,在288次性行为中,只有一次能受胎。

更多点击:

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