For bulk orders vendors will create some special stealth method that's integrated into some gift that you'd buy for your GF. You send to her address/name and extract your stuff when she gets it.
Remember there's a 95% chance this GF of yours will end up one day being someone you despise and will probably cheat on you so please, don't wanna hear about zomg that's so wrong to do to her.
I definitely came here expecting to see a meth-fueled page long rant