A Rare and Beautiful Thing — Emery C. Walters

Miranda isn't sure if she is transgendered or a lesbian. When Cal, a gay boy her age comes to stay next door for the summer, they become close. Even though they are opposites, they are both outsiders, and their friendship blossoms over the summer. Could there be romance despite their differences?

Then twins Ada and Van move into the neighborhood, and Miranda finds herself torn between them. She can't decide who she's more attracted to -- Ada, who may be lesbian, or Van, who is transgendered. Will she find love with one of them instead?