Cumming Contest

Cumming Contest

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Winner of Dance your PhD 2013 by Science.
Females of the red jungle fowl (forest chicken) mate with multiple males, which can create competition between sperm of different males in order to fertilize the egg. In my PhD thesis, I explored the effect of brotherhood on sperm competition and female choice. Interestingly, the brother of the first male that the female has mated with invests more sperm in the female than the non-brother of the first male mate. However, the female ejects a higher proportion of sperm from the brother of the first mate and favours the sperm of the non-brother, facilitating a higher fertility by the non-brother’s sperm.
In addition to the main story, we showcase some of the interesting biology of sperm. First, sperm quality differs and while some move faster and are more forward-moving, others move in circles. Second, sperm of multiple males can interact with one another, sometimes even antagonistically.
Inspired by various sports, the dance movements in this video reflect the competitive nature in the sperm world. The two original music pieces in this video are (1) ‘Animal Love’, which is about the variety of sexual behavior in different species and (2) ‘Scenester’, a piece telling the story about a girl who keeps changing her ways and males trying to keep up with her.
Please watch our other video: vimeo.com/44808911
Director: Cedric Tan ( wildcru.org/members/dr-cedric-kai-wei-tan/ )
Producer: Sozos Michaelides ( zoo.ox.ac.uk/egi/members/sozos-michaelides/ )
Co-choreographer: Hannah Moore
Co-producer: Kiyono Sekii ( zoo.ox.ac.uk/egi/members/kiyono-sekii/ )
Director of Photography: Xinyang Hong ( worldpictured.com/videos )
Guest camera man for Port Meadow: Robert Rapoport ( robertrapoport.com/ )
Original music and lyrics by Stuart Noah ( stuartnoah.bandcamp.com/ ; facebook.com/stuart.noah )
This project was funded by the European Society for Evolutionary Biology, Edward Grey Institute of Ornithology (University of Oxford) and Green Templeton College (University of Oxford).
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Female G Spot, Prostate and Ejaculation
Why (Penis in Vagina) Sex Can Be 'Meh'
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A guide to balls. How ejaculation works, testicular cancer, ball checks, prostate gland, G spot and ‘pre cum’
This guide can only really teach you some of the basics – you might want to have a look at your own private parts (in private) to see how all this feels for yourself.
There’s a lot of variation in the size of testicles and balls. They also appear to change shape and size as the scotum reacts to pull them up into the body and to let them hang low again. There’s more on how this works below.
When the penis is aroused this also has the effect of making the balls a bit tighter. It’s thought that this is to do with the cremaster muscle (see below).
Testicles produce millions of sperm each day. Usually male bodies will have two of them. They get bigger during puberty (and the scrotum expands to allow for this) but if you have testicles they will already have dropped before puberty starts. A lot of people think that testicles suddenly ‘drop’ as a sign of puberty, but that isn’t true at all. They usually drop into the scrotum soon after birth.
It is normal for one to hang lower than the other (so they don’t bang into each other) and for one to be slightly bigger. They can swell up when sexually excited and can feel tender or a little bit sore – people call this blue balls (that’s also known as vasocongestion and it also happens to people with female bodies). This goes away after a while by itself. If you want to make that ache go away sooner you could masturbate. If that’s not your thing, maybe a cool bath or a shower might help.
They are delicate so look after them. Avoid tight pants and try and prevent them from getting hit playing sport or anything else. A number of things can go wrong with your balls. One of these is ball cancer which is very serious but also very rare. So get to know how your balls feel, so that you know if anything is unusual. They should be smooth and soft, like a hard boiled egg without the shell on, apart from the rear of each ball which will feel lumpy. Do this after a shower when your balls are hanging lower.
If you find any small lumps on your balls or if one of them has got noticeably bigger or heavier then GO STRAIGHT TO A DOCTOR OR CLINIC. Ball cancer is easily treated if caught early enough. Most of the time it isn’t cancer, just a harmless cyst. For more about this go here
The muscles inside the scrotum protects the testicles also and controls their temperature by raising them up and down. If it’s warm they hang down, if it’s cold they tighten up. This is because sperm needs to be slightly cooler (2 ° C) than body temperature.
The muscles raise the testicles up into an area called the inguinal canal. Sometimes the testicles can actually pop all the way into the body. This can happen if you get suddenly frightened by something, if you laugh really hard, or you get the shock of being really really cold (like if you jump into a cold lake). If it does happen it’s chill. Read more about the balls going up inside the body.
People produce around 1 or 2 teaspoons of cum – it ejaculates at up to 40 kph (breaking the speed limit). Around 99% of ‘cum’ is semen which helps to provide energy, and assistance for the sperm in order to fertilize an egg. It’s mostly water. Some cum is thick and sticky, some milky and some very watery. It can vary a lot. Semen’s job is to help sperm to swim but it also keeps them alive with minerals.
Sperm is created and stored in the testicles. Even though only 1% of semen is sperm there can be up to 150 million in each ‘load’ of ‘cum.’ Their role is to fertilise eggs in order to begin a pregnancy.
Some people find they have a little bit of fluid at the tip of their penis before they ejaculate. This ‘pre-cum’ is not actually ‘cum’ but a fluid which cleans the urethra.
This study suggests that some people do have sperm in their pre-cum and some people don’t. Where there is sperm in pre-cum in a minority of cases it is mobile enough to be fertile but there are much less of them than in a normal ejaculation.
If a penis was to pre-cum inside someone’s vagina there would be a risk of pregnancy, but this would be a lot less than if someone fully ejaculated inside a vagina. One of the tricky things about pre-cum is that people often don’t really know when they have fully ejaculated or not. I wrote a piece about the chances of pregnancy from having sex just once, I bet you guess wrong.
People more likely to get and give an infection from pre-cum or unusual discharge (if either partner has an infection), which is why it’s important to put a condom on before the penis enters someone.
Sperm starts it’s journey in the testicles. It then moves to the epididymis, which swells a bit before ejaculation. Then the sperm travels up the sperm tubes (called the vas deferens for you sex geeks) and then up to to the prostate. The prostate is where semen is created and here they both get mixed up. Then during ejaculation muscles around the prostate pump the semen and sperm out of the erect penis at high speed.
After ejaculation penises can’t usually get hard again for a few minutes (10 – 30 minutes, sometimes sooner, sometimes longer). This is called the refractory period and is totally normal, it’s also normal to not have a refractory period. For a lot of people this means that after ejaculation they aren’t really interested in sex for a while. However, if you do feel like you would like to continue having sex, you could — you don’t need an erection to have sex. I’ve got more advice about that here. Here’s more about ‘the hard on’.
If you like could you please share it with your peoples. BISH is also on Instagram , Twitter , Facebook , YouTube , and I’ve just joined TikTok .
Do leave a comment below if you have anything you’d like to add or if you have questions. I moderate all comments before they go live. Click here to ask me a question
If you’re an adult with cash, please consider supporting my Patreon , just £1 a month would be really helpful. If I get enough Patrons I’ll make some resources for educators too. You could also chip in directly via my PayPal. So if you could help with that I’d be very grateful. You are my only source of funding at the moment.
Stay in touch with Bish! Get an email every time I post an article or follow on Twitter (I post less on Instagram and TikTok because they take down sex education content!) The rest of the article continues below.
If you’re over 18 and really into sex ed I have a podcast you might like called Culture Sex Relationships.
If you want to teach about this stuff, don’t just show people a website – that’s kinda boring! Check out my very popular RSE resources at bishtraining.com
Justin Hancock has been a trained sex and relationships educator since 1999. In that time he’s taught and given advice about sex and relationships with thousands of young people in person and millions online. He’s a member of the World Association for Sexual Health. Find out more about Justin here
That’s a good question. It’s not going to feel the same for everyone and some people might start to cum before they realise. If you masturbate, you could just try to pay attention to what happens if you make yourself cum. It’s all about the muscles contracting around the prostate gland pumping the sperm and semen out. Some people know when this is about to happen, or when the muscles start to contract. But I think it’s a practice thing.
Why do my balls get smaller when i precum
That sounds like the cremaster muscle pulling your balls up closer to your body when you are aroused. As I explained in the drawings at the top of the page
How do I increase the amount of semen I shoot so that I can glaze my gf like a Krispy Kreme?
Hi Buster Gonad. I don’t think that there’s any way for you to increase the amount of semen you produce. Even though you may have unfeasibly large testicles that doesn’t really make a difference to the amount of semen you cum. Semen is made and stored in the prostate, not the balls. Some people say that if you drink more water then you might make more semen (as semen is mostly water, sound legit), so perhaps try it and see? If you and your GF wanted to glaze her like a Krispy Kreme you could also use other substances that look a bit like semen (which often happens in porn shoots). Good luck with it. Justin
My penis is quite large, but my testicles are small and lopsided. Wouldn’t the fact that I have a large penis mean that I produce a lot of testosorine and wouldn’t it be more likely to have a matching set of balls to a big cock?
Good question. I’ll try to find out.
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