I wanna buy a toy.?

I wanna buy a toy for me and my girlfriend during our "fooling around time", but mostly for me :). The problem is, I live with my parents and my parents have no clue that I am ually active (im 18). This would be my first toy and the site says that if the product is over $100 which it is, and UPS sends it, theyll need a signature when they ship it. I just have a horrible feeling that one of my parents will answer the door, and maybe ask what it is. With this being my first toy, I'm not sure if the box will say " TOY!" or the name of the site that makes it on the box. I feel if they find out, they'll look at me differently. My parents NEVER leave the house, they are both retired. Is there any lines I can possibly use if they ask what it is. Also, maybe you can take a load of my mind if when the package ships, it doesn't say anything about it being a sex toy.