Am I the only straight girl who like to read yaoi?!

I'm new to the manga and yaoi world so I was checking and I found out a lot of bi and gay who like to read yaoi so I feel strange like I'm the only straight girl who like to read yaoi is it only me who's straight and like to read yaoi and find it cute and sexy ?! And I'm 18 am I considered too young or too old to read it (=・ω・=)