In comments calling for the standards of rape to be heightened, he said: "Women usually pretend that they don’t want [sex]. The percentage of women who pretend that they don’t want to have sex, but they do want in fact, is about 30 or 40 per cent
He added in the Observer interview: "Semen probably is not wasted, because nature usually makes use of the material it has, and there is a hypothesis that the attitudes of men are passed to women by way of the semen which penetrates the tissue.
"It is not a political statement. There is a very strong argument for this hypothesis, that now when contraceptives are much more in use, the women become much more independent."
Korwin-Mikke is no stranger to controversy having said in 2007: "Women still should not have the right to vote. Just choose any political meeting at random and see how many women are present."
Story continues after slideshow...
10 Policies You Had Forgotten Ukip Had Made
Taxi drivers must wear uniforms(01 of10)
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For those who see a black cab with an illuminated sign saying 'TAXI' on it - and aren't sure whether it's a taxi - Ukip had you covered. When Andrew Neill put this to Farage on The Daily Politics in January, saying: "You favour a compulsory dress code for taxi drivers". Farage said: "Do we?" The policy didn't actually make it into the 16-page manifesto but was mooted by a "discussion group" that fed into Ukip policies, then policy chief David Campbell Bannerman told HuffPost UK. (credit:Anthony Devlin/PA Archive)
Ban the burkha! (Well, in some places)(02 of10)
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In the section about 'Restoring Britishness', the manifesto pledged to "tackle Islamic extremism" by banning the wearing of the burkha or veiled niqab in public buildings and "certain private" ones. "Ukip opposes multiculturalism and political correctness - aiming to create a single British culture embracing all religions and cultures," it said. (credit:Anthony Devlin/PA Archive)
Shield our children from Al Gore's 'propaganda' (03 of10)
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Eurosceptics and climate change sceptics appear to go hand in hand - Ukip say they wanted to abolish the Climate Change Act and ban Al Gore's Oscar-winning documentary An Inconvenient Truth from our schools, calling it "global warming propaganda". It also pledged to stop funding the UN panel on climate change and fund the Met Office "according to forecast accuracy". But they did have a green side... (credit:ASSOCIATED PRESS)
Get us all to drive electric cars(04 of10)
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The manifesto said it would "incentivise and support" the use of electric road vehicles. (credit:John Walton/PA Archive)
A 'proper' Treason Act(05 of10)
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Yeah, that's right - a "proper" one. Suck it, traitors. The act would be to prosecute British citizens found guilty of attacks on "the British people or armed forces". Beyond that, there isn't much detail. (credit:Alastair Grant/PA Wire)
Boot camps for young offenders(06 of10)
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Young people consistently in trouble with the law were to be sent to "boot camp" to stop them "spiraling into a life crime". Ominously, that is all the manifesto has to say on the subject. It also pledged to double the number of prison places, presumably in case the camps didn't work. (credit:Jeff Moore/Jeff Moore)
Safeguard British measurements(07 of10)
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Farage wasn't Ukip leader at the time of the 2010 general election but we detect his fingerprints on this. His party pledged to "safeguard" imperial measurements like the pint and the mile from being "undermined" by Brussels. So, Farage won't have to order "half a litre of ale," (or worse, lager) any time soon. (credit:Steve Parsons/PA Wire)
Triple the size of the border staff(08 of10)
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The Border Agency needed to be tripled in size to around 30,000 employees, in order to enforce Ukip's proposed new requirement that every non-UK citizen's entry and exit to the country be recorded. (credit:Steve Parsons/PA Wire)
Return to grants for students(09 of10)
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University students are an unlikely target demographic for the eurosceptic party. Nonetheless, they said they would return to the old student grant system and scrap students loans which are leaving them in "heavy debt" If only those thousands of students who voted for the Lib Dems had known... (credit:Johnny Green/PA Wire)
'English-only' days at parliament(10 of10)
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Bloody Scots, coming down here, taking up their duly elected places in the House of Commons. On "English-only" days, the MPs from Scotland, Wales and Northern Ireland would be required to go home and perform the devolved duties of the regional assemblies - whose existing members they would replace. (credit:Steve Parsons/PA Wire)
And if that wasn't enough he once claimed Hitler would be acquitted in a modern court of law as he had no idea the Holocaust was actually happening.
Despite this it has not stopped Nigel Farage's party from courting the group in order to save his Europe of Freedom and Direct Democracy (EFDD) group.
They risked collapse after Latvian MEP Iveta Grigule announced she was leaving to sit as an independent.
Groups in the European Parliament are formed to secure positions on committees and speaking time as well as receive funding. They need representatives from at least seven EU states to be recognised.
Farage recruited Polish MEP and KNP member, Robert Jaroslaw Iwaszkiewicz, to make up the numbers.
Iwaszkiewicz defended his leader's comments on Hitler as well as saying making jokes about wife-beating.
When asked about wife-beating by the Wroclaw Gazette in May of this year, Iwaszkiewicz said he was "convinced" that beating would "help bring many wives back down to earth". He added he did not beat his wife as "we always got along" and there were "no problems".
Iwaszkiewicz said that "unfortunately, I never beat my children." Asked why he had said "unfortunately," the Polish politician explained: "Because it would have toughened them up. It would have strengthened their character and they would be able to behave better in crisis situations."
He aslo said the EFDD was "vital and unique" and needed to be helped. "I joined the EFDD Group because of two important values - opposition to EU bureaucracy and support for free markets so firmly supported by the Ukip delegation," he said.
Welcoming him, Farage said: "European Parliament President Schulz's part in trying to shut us down last week was contemptible. It was manipulative backroom politics of the worst kind. But in his eagerness to silence the Eurosceptic voice he acted prematurely.
"EU Federalists will be sitting in a corner somewhere slowly rocking muttering the words 'please make the Eurosceptics go away' over & over. We will now make the EU's centralising fanatics regret their short-lived bout of hubris."
Ukip has previously had to defend its allegiance with other controversy-laden members of the EFDD, including the far-right Sweden Democrat party.