Is it normal that i cannot remeber a time before i was sexually awake?

just to be clear i do not mean sexually active, i was not abused as a child and i was not neglected. i just never went though the phase wherein i would regard any person as a candidate. i don't mean to be vulgar but i just never though about sex as gross i have always wanted it. I remember sneaking around my house in the morning trying to get a look at my dads girlfriends tits, more if i was lucky. i feel like the only one sometimes.