The odd reason your penis is shaped like a mushroom – and it’s to do with CHEATING 0 79

THE penis comes in all shapes and sizes – but there is a surprising reason why the end is mushroom-shaped.

Scientists claim it is an evolutionary design that comes back to infidelity.

Stewart Williams – The SunThe end of the penis is mushroom shaped, with a ridge separating it from the shaft[/caption]

When considering why the human penis looks the way it does, a team of scientists in New York ran a series of experiments.

They first theorised that the head of the penis – which is rather mushroom shaped – is in fact a “tool” to remove the semen of love rivals.

It’s enough to make you squirm, but makes evolutionary sense. 

Men wanted to ensure they are the one who carries on their lineage – survival of the fittest, and all.

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To ensure theirs is the only semen inside a woman, the ridge that separates the head from the shaft, called the coronal ridge, may help.

During penetration, it can assist with removing semen from inside the vagina. 

The researchers, led by Professor Gordon Gallup from the State University of New York, put it bluntly.

Their paper said: “If a female copulated with more than one male within a short period of time, this would allow subsequent males to ‘scoop out’ semen left by others before ejaculating.”

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The team put their theory to the test in 2003, using artificial genitals and fake semen made of mixed starch and water.

Indeed, the latex penis and its ridge was able to scoop out more than 90 per cent of the “semen” substitute, in just one thrust.

A member with no coronal ridge only managed to remove 35 per cent of the semen.

Depth of thrusting was also important for clearing the vagina.

Prof Gallup told the BBC: “We theorise that as a consequence of competition for paternity, human males evolved uniquely configured penises that function to displace semen from the vagina left by other males.

“Thus, the human penis may enable males to substitute their semen for the semen of their competitors.”

Cavemen versus the modern man

While men’s penises haven’t changed since the beginning of time, sex and relationships certainly have.

The scooping out mechanism would have been much more useful hundreds of thousands of years ago when humans were considerably more occupied with procreating.

However, our instinctive sexual desires and behaviours in many ways, have stayed the same.

The researchers said that in their research, they found evidence men still unconsciously use their penis as a “semen displacement device”.

Two surveys of around 500 college students – both men and women – were conducted.

Participants recalled that sex with partners involved “deeper and more vigorous penile thrusting” if they had been separarted, or if the female was suspected of cheating.

It puts seedy doubts over the phrase “absence makes the heart grow fonder”, but backs the researchers’ theory.

Prof Gallup said: “Under conditions that raise the threat of female infidelity, college students reported changes in sexual behavior that would serve to purge the vagina of foreign semen prior to ejaculation.”

Some experts said they thought the idea was flawed and did not serve as a strong enough explaination on why the penis is shaped the way it is.

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There is no standard shape of penis and while most tips will mushroom-like, they can have a variety of differences.

Size, girth, angle or circumcision are all among the factors that can lead men to have different looking penises.

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My bitter ex told lies to my friends about my ‘small manhood’ after I dumped her 0 41

DEAR DEIDRE: MY ex is so bitter about being dumped that she is spreading nasty rumours around our friendship group – saying I’m rubbish in bed and have a small todger.

She never complained when we were together, but last week she told the girls in our group that being with me was “like kissing a soggy lettuce leaf” and that she “literally didn’t feel a thing when we were having sex” because I’m so small.

My ex is so bitter about being dumped that she is spreading nasty rumours around our friendship group – saying I’m rubbish in bed and have a small todger

I’m 25 and she’s 24. I think part of it is jealousy.

She knows a couple of the other girls fancy me and I think she’s trying to sabotage any chance I have with them.

Not that I’m even planning anything.

She’s so insecure and has a vicious tongue on her.

I’m tempted to let each of her so-called friends know what she really says about them in private.

Even her best friend gets a nasty critique every time she posts anything on Instagram.

Get in touch with Deidre

Every problem gets a personal reply, usually within 24 hours weekdays.

Send an email to deardeidre@the-sun.co.uk

You can also send a private message on the DearDeidreOfficial Facebook page.

Her top is either too short, or her hair looks like wire, or her laugh is fake . . . it goes on and on.

I don’t regret splitting up with her but this last trick has really infuriated me.

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DEIDRE SAYS: Don’t let yourself stoop to her level.

You can make it clear she is lying without playing her game, which would only escalate tensions and reflect badly on you.

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You could maybe reply with: “Let’s just say she never complained when we were together and nor have any of my other exes.”

Your friends will soon see her behaviour for what it is – jealous insecurity.

My partner said he was on a work trip – but he was actually getting married and on his honeymoon 0 28

DEAR DEIDRE: MY partner said he was on a work trip two months ago, but he had actually got married and been on honeymoon.

Our relationship had become a bit predictable, but we still had regular sex and nice days out with our two young sons.

My partner lied about his work trip – he was really on his HONEYMOON

I’m 32 and he’s 37. Our sons are four and two.

When he returned from his “work trip” he blamed me for his cheating, saying I had let myself go and didn’t pay him enough attention.

He then told me he’d “traded up” for a better model. It didn’t stop there.

He said that his wife, who is 27, is absolutely stunning and makes him feel special.

Apparently this woman was a barmaid he’d met on a golf trip and they had been seeing each other for six months.

He told me all this, then marched upstairs and packed his games console and his clothes and drove off out of my life.

The thing is, we always talked about getting married but when we had kids there always seemed something better to spend our money on.

Mutual friends have told me he has moved into a new-build home on the other side of our small town and his wife has plenty of family money.

My sons are really missing him and I don’t even know how I feel.

Sometimes when he comes to visit the boys I beg him to come home.

But other times I’m so angry with him, I refuse to let him in.

Now he is accusing me of stopping him from seeing his children.

Get in touch with Deidre

Every problem gets a personal reply, usually within 24 hours weekdays.

Send an email to deardeidre@the-sun.co.uk

You can also send a private message on the DearDeidreOfficial Facebook page.

Surely he can’t just show up when he likes?

I’m a mess and need to start getting a grip for the kids’ sake.

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My neighbour borrowed my shed and refused to pay me for it

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DEAR DEIDRE

I caught my husband snogging my sister – how am I meant to trust him again?

DEIDRE SAYS: I’m so sorry your partner ended your relationship in such a cruel way.

This man sounds selfish and immature, and quite frankly the way he has treated you is emotionally abusive.

It won’t feel like it now, but you really are better off without him.

He is behaving like he still lives in your home, by just turning up unannounced.

Tell him firmly that you would encourage a good relationship between him and your sons but he can only collect them with prior arrangement.

Start to put down your boundaries.

I’m sending you my support pack When Parents Fall Out, which you could pass to him to help explain why you need to co-operate for the future wellbeing of your children.

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Give yourself time and be kind to yourself. He put you down constantly, now you can start to build up your confidence.

I’d recommend seeing a counsellor to help you with this betrayal and am sending you my Counselling support pack.

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