how do I masturbate without my parents knowing

I'm 13 and really want to masterbait (sorry if I spell bad) but I'm scared to finger myself so if you could tell me another way to do it that would be great!

if you want to start small use a tampon applicator, or a mascara tube or a vibrating tooth brush (the side with out the brush) or you could dry hump a pillow or blanket or stuffed animal.

You dont have to insert your finger into your vagina.
All you need to do is to rub your clitoris and that generates immense pleasure. Leave penetration for later if you want to do it but you will find that rubbing your clit is a great way to masturbate and achieve an orgasm. Wet your middle finger with some saliva and then gently massage your clitoris. That will generate a very nice pleasurable sensation and you can make those rubbing strokes faster and harder as long as you enjoy it. Sometimes the clit can be extremely sensitive and you may have to start real slow. That's why having time and a private place will help. As you get more confident doing it and enjoying it you can vary the techniques to suit your desires.
Make sure you have a private place where no one can disturb you or walk in when you are masturbating. Dont rush it, take your time.
If you have a boyfriend he could help you. Oral sex and a guy sucking on your clit will make you cum instantly. It is the height of pleasure when a guy who knows what he is doing can suck your clitoris and make you orgasm.

I am also a 13 year old boy. you don't have to finger yourself to cum. The way that i do it is I give myself a hand job with my right hand then use two of my left fingers and tap the area.

Do you masturbate a lot?