Oh, actually, I learned about this in biology class way back when.
Apparently, the length of your fourth finger is indicative of the levels of testosterone in your body. (If it’s longer than your second finger, you have more testosterone. If it’s shorter, then apparently you have less.)
I guess these hormones have something to do with whether or not you’re heterosexual or homosexual?
I’m not sure if it’s really indicative of sexuality but apparently I have more testosterone in me.