Queen Victoria and Prince Albert

Queen Victoria (1819-1901) married her first cousin, Prince Albert (1819-1861) of Saxe-Coburg and Gotha, on February 10, 1840 at St James's Palace.  Their nine children married into royal and noble families across the continent, tying them together and earning her the sobriquet "the grandmother of Europe". After Albert's death in 1861, Victoria plunged into deep mourning and avoided public appearances.  Her reign of 63 years and seven months is known as the Victorian era and is the second longest of any British monarch.  She was surpassed by her great-great-granddaughter Elizabeth II. 

Victoria is an eight part British drama television series that premiered on August 28, 2016 on ITV.  RadioTimes has an article comparing the TV series to the real life couple:

"These days, marrying cousins is sometimes frowned upon but in the UK it is perfectly legal and the British royal family have been doing it for hundreds of years in order to ensure strong alliances and allegiances.

In this week's episode of the ITV drama the relationship between the cousins is strained at first, with neither overly keen to get married in accordance with their parents' wishes and Victoria expressing distaste at Albert's personality.

However, in real life it doesn't seem like this was the case. Certainly, Victoria appeared to think Albert was made for her from the beginning, having met him in 1836 a year before she ascended to the throne (unlike in the TV series where it's implied the pair haven't seen each other since they were much younger).

Writing in her diary after their first meeting, she noted some of their physical similarities and was clear about her attraction to him."

Update (December 4, 2022): On September 24th, History of Yesterday had an article about this royal couple: Why Did Queen Victoria Marry Her Cousin?

Mind-blowing sex with my cousin

A 28-year-old British man wrote to an advice columnist to ask about his sexual relationship with his 24-year-old cousin.

"We lost touch when my mum and dad divorced. Our dads are brothers and I moved to the other end of the country with my mum.

I remember my cousin back then as a quiet, funny little thing — very different from the stunning brunette she is today.

We met at her brother’s wedding a few months ago and I can honestly say I fell in love with her there and then.

Turns out she felt exactly the same way."

I wish the happy couple the best of luck in telling their other relatives, because I'm sure it will be difficult.

Sex between cousins is not incest

A high court judge in Kenya has ruled that sex with a cousin is not prohibited by the law.

"Should first cousins be allowed to have sex? The courts think so.

High Court Judge J A Makau says the law does not list first cousins among the relatives between whom sex is classified as incest under the law.

In his judgment, Makau said it is permissible to have sex with a cousin because in some cultures in Kenya, such as some Hindus and Muslims and some African communities, sexual acts with cousins are not criminalised."

I agree with this ruling.  Incest should only include first and second degree relatives like parents, siblings, children, uncles, aunts, nephews, nieces, grandparents, grandchildren, and half-siblings.  Third-degree relatives constitute a category of the extended family that includes first cousins.

Superman and Supergirl are cousins

A Facebook group called "Ultra Cool Super Rad Memes" created a parody ad about the CW Network TV series Supergirl, implying a sexual relationship between Superman and Supergirl.

While it seems like two people from the same planet would be the perfect couple, apparently planet Krypton prohibits cousins from marrying.