1. Is that a wand in your pocket, or are you just happy to see me?
2. Have you heard of Platform 9 and 3/4? Well, I can think of something else with the exact same measurements.
3. If you were a Dementor, I'd become a criminal just to get your kiss.
4. My name may not be Luna, but I sure know how to Lovegood!
5. Hagrid's not the only giant on campus, if you know what I mean.
6. Your name must be Severus Severus, because you're making my prince full blood.
7. Interested in making some magic together? My wand is at the ready.
8. I must have had some Felix Felicis, because I think I'm about to get lucky.
9. I've been whomping my willow thinking about you.
10. I'm not wearing an invisibility cloak, but do you think I could still visit your restricted section tonight?
11. You don't even have to say “Luminos Maxima” to turn me on!
12. I'd like to get my basilisk into your chamber of secrets.
13. Can I just Slytherin to bed with you?
14. Your smile's like expelliarmus: simple but disarming.
15. Did you survive Avada Kedavra? 'Cause you're drop dead gorgeous.
16. I'm not an Animagus but sometimes I can be real animal.
17. A couple nights with me and Moaning Myrtle will have to get a new nickname.
18. The thought of you makes something vast and silver erupt from my wand.
19. Why don't you come tame my dragon?
20. Did you say “Wingardium Leviosa”? Cause you've got me rising, baby.
21. If I try hard enough, I can get a really big patronus. All I have to do is think of happy things.
22. If I were a Seeker and you were a Snitch, would you let me catch you?
23. I need a pensieve because my head is filled with thoughts about you.
24. If you were a basilisk, I wouldn't mind dying just to look into your eyes.
25. I'm just like Oliver Wood, baby… I'm a keeper!
26. Yeah, girls call me “Aguamenti.” Every time they hear my name, they get wet.
27. Are you a golden snitch? Because I've been seeking for something like you my whole life.
28. I don't need the mirror of Erised to know that you're everything I desire.
29. Did you use Relashio? 'Cause there's sparks between us.
30. It's a portkey…. once you touch it, it will take you somewhere you ain't never been before.
31. So I hear you are the Head Girl of your house…
32. They say I'm like the horn of a crumple-horned snorkack. Explosive.
33. I don't have any muggle money, but I do have a sickle and two knuts.
34. You look like you'd be a good Quidditch player. Want to ride my broomstick?
35. You can have the portkey to my heart.
Found here