"Well, why don't we go to my house and have some erotic roleplay with our Halloween costumes?" you ask your girlfriend as she likes the idea of yours.
"Oooohhhh, a sexy role-playing. I like it, hun." your girlfriend replies as she smiles. "And I can't wait to try it on when we're have sex."
After that, you and your girlfriend go home with your Halloween costumes you just bought, both of you decided to dress up and ready for some action. When you and your girlfriend finally got dressed, you both look at each other and amaze. "Wow, babe. You look so sexy and beautiful when you're a vampire countess." you amaze your girlfriend as she's in Vampire costume.
"Thank, you're also have a best look for being a hunter. Blah blah blah" your girlfriend teases as she's doing Dracula thing. "Now, come and have a piece of this naughty vampire, hunter."
With that, you come as she's told and then give each other a romantic and passionate kisses.