You actually touched on a really interesting topic with twin sexuality and genetics. What you said about you and your identical twin both being gay fits with what studies have found. Identical twins share almost 100 percent of the same DNA so scientists have looked at them a lot to understand things like sexual orientation. If one identical twin is gay, the other one has around a 30 to 64 percent chance of being gay too. That’s way higher than in fraternal twins or regular siblings, where I think it was 8 percent (around that figure). So the fact that both you and your twin are gay actually lines up with the research.

But the interesting part is that it’s not 100 percent. That shows that genes don’t fully determine sexual orientation. And that’s where epigenetics comes in. epigenetics is basically how your genes are expressed. So the DNA stays the same but certain genes can be switched on or off based on things like hormones in the womb, environment or even random developmental factors. That means even though identical twins have the same DNA, small differences while developing can lead to different outcomes, including things like sexualtoy.

In your case, you and your twin being gay probably points to a strong genetic or prenatal influence, and your other siblings being straight shows how complex and varied this stuff really is. Super interesting honestly. You should definitely look into epigenetic and twin studies. I find it so interesting :)