I have kind of a dumb question...?

So I'm looking to buy my first toy, a vibrator. I'm looking on the Adam & Eve site. I'm still living with my parents so I have to be careful about signing up for things there and of course once I do find one to order. Is it really secure for when the package is delievered to my house? Won't my parents question what I ordered? What will I tell them then? Also this may sound dumb, but with a vibrator do you need to buy lube also? Or can I just produce enough by myself before I insert the vibrator to have fun with that. Please let me know. Thanks! :)