While the best way to know if someone is a lesbian is to ask, you can also count on your own senses. It's completely normal to question your sexual orientation at any age, but especially for teenagers. New & recommended books, CDs, DVDs, e-books, apps and more for teens! I clutched onto my glittery, unrealistic, pre-teen fantasy like it was the last glass of. I came out in my late teens, when I fell in love with my best friend.