Assuming pregnancy takes place, the only reliable sign that a woman is pregnant is cessation of her menstrual period. If she's late, urine tests are a reliable way to confirm pregnancy, especially if the woman has irregular periods.
Up to 50% of women will not experience nausea (the range, depending on the study, is 15-50%); while most will, when they do ...
Your gel does not contain an active ingredient that causes arousal.
The antifreeze agent propylene glycol will be perceived as an increase in body temperature, where-ever applied, which is supposed to turn one on.
Most of the ingredients are about the aggregate state and lubricity of the gel. Any drugs that enhance sexual performances (thanks @...
Disclaimer: Some of the sources in this post should likely be considered "Not Safe for Work".
Glycerine-based lubricants, which are likely the most common form of water-based lubricants on the market (consider, for example, Astroglide or K-Y) have a number of positive properties to them (when compared to silicon or oil-based lubricants):
They are safe for ...
The literature regarding the use of sex toys in women is sparse.
I have found two studies, which describe potential side effects related to the use of sex toys in women:
Transmission of sexual transmitted disease due to the use of uncleaned and shared penetrative sex toys
Higher prevalence of bacterial vaginosis
Vaginal irritation and trauma in forceful ...
The following studies found that circumcision does have a detrimental impact on penis sensitivity.
From a 2013 study by Bronselaer et al.:
The analysis sample consisted of 1059 uncircumcised and 310 circumcised men.
For the glans penis, circumcised men reported decreased sexual pleasure and lower orgasm intensity. They also stated more effort was required ...
She had two periods afterwards so she is not pregnant.
Who are you to demand that she take a test? You pretty much called her a liar when you did that. If you can't or won't accept her at her word about being on birth control, not being pregnant, etc, then I recommend you quit sleeping with women you have such a low opinion of.
Psychology is an important component of the human sexual response. Mental health conditions such as depression and anxiety spectrum disorders can significantly change an individual's sexual response. Sexual dysfunction such as anorgasmia (difficulty achieving orgasm), decreased libido (lower sex drive), lower arousal state, and erectile dysfunction (...
According to one 2010 paper, which actually tried to identify the correlates of the behavior, albeit in a small sample (n=13, 3 males, 10 females) that was referred to a clinic:
The median age at the first incident was 19.5 months (range, 4-36 months); the median masturbation frequency, 4 times/day; and the median duration of each event, 3.9 min. The ...
Viagra does not cause a spontaneous erection. You have to be sexually stimulated in order for it to take effect. This particular film scene would suggest that Franco was sexually aroused by the 'chase'.
Hope this helps clear things up for you.
Being transgendered is NOT a mental health condition.
The American Psychiatric Association states that a mental health disorder requires distress or disability (APA, n.d.).
A psychological state is considered a mental disorder only if it causes significant distress or disability. Many transgender people do not experience their gender as distressing or ...
That product is marketed boldly as "Special formula designed to bring sensual waves of warming, cooling or tingling sensations. Increases sensitivity of her intimate areas for more intense pleasure. Up to 20 earth-shattering orgasms in 1 bottle." So it is intended to enhance not cause arousal.
That still sounds quite a bit like an overstatement. Looking ...
I will answer your questions in turn
How does venous leak develop?
WebMD in the linked article in your question states how Venous Leak can happen
It may happen with vascular disease.
Vascular diseases affect blood vessels. They lower blood flow to organs such as the heart, brain, and kidneys. If they cut blood flow to the penis, they can cause erectile ...
I generally agree with jj78, although I would add a couple of provisos.
a) The answer partly depends on how one defines 'spontaneous', an adjective with more than one meaning:
spontaneous adj. 1. occurring, produced, or performed through natural processes without external influence: spontaneous movement. 2. arising from an unforced personal impulse; ...
It sounds like you're describing delayed orgasm. I've condensed the relevant bits of the following paper:
Jenkins & Mulhall. Delayed orgasm and anorgasmia. Fertility and Sterility, 2015; 104(5):1082-1088.
Delayed orgasm/anorgasmia defined as the persistent or recurrent difficulty, delay in, or absence of attaining orgasm after sufficient ...