…if straight women can perpetuate oppression with one another, then it makes sense that they can perpetuate it with queer women, too – and across multiple layers. Although all women are oppressed because of our gender, straight women still have privilege because of their sexual identity: That’s the very nature of intersectionality.
How a straight woman handles her sexuality is constantly under scrutiny, and that’s an unacceptable result of patriarchy. But it’s not the same as how a queer woman’s sexuality is perceived, since that exists at the intersection of patriarchy and heterocentrism.
That is, as often as people judge straight women for how much sex they have, they never judge them for the gender of the people they have it with. And they certainly don’t debate whether they even have the right to be in a relationship in the first place.
Source: 5 Things Straight Women Should Stop Saying to Queer Women – Everyday Feminism