Is sex common btween lesbian twins

We have a lot in common. The parallels of our homo-gay Canadian twin lives are uncanny. For starters, we both have a gay twin named Sara. Years ago at a show I remember Tegan talking about how she had just moved to Vancouver, and Sara to Montreal, when lo and behold: my sister and I had just done the exact same thing. More like a twin thing where at a certain age you decide to cut the umbilical cord proverbial this time and move to opposite ends of the country in search of the autonomy that has genetically and circumstantially eluded you thus far.

The researchers hope that the study may help them work out how, when and why human sexuality is produced. Scientists are studying identical twin sisters - one of whom is heterosexual, the other is homosexual - to try and gain a better understanding of human sexuality. Sarah is straight, Rosie is a lesbian and the twins are now being studied by scientists at The University of Essex. So they went back to Sarah.

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Straight women are much more likely to get themselves knocked up than gay women. So, in terms of evolution, they would seem to have a better chance of passing on their genes, while at the same time it would seem that the genes that make women gay would quickly vanish from the gene pool. This raises the question, why are there gay women? Lesbianism is indeed at least 25 percent genetic, as determined by a study of twins conducted in the United Kingdom. The study found that identical twin sisters who share percent of their DNA are more likely to both be lesbians than are fraternal twin sisters who share just 50 percent , proving that, all other environmental factors being equal, genes matter.