Hidan: Have *** with me or die
Zetsu: Roses are red, lemons are sour, open your legs, and give me an hour.
Kisame: Wanna sleep with the fishes tonight? ;D
Sasori: GET IN THE PUPPET! (I don't know 30+ year old guy that looks 15 screams pedo to me)
Tobi: Tobi thinks you should play nurse with him.
Itatchi/Sasuke/ Madara/ Kakashi/ who ever else has sharigan: I was checking you out with my Sharigan, I couldn't help but notice your chakra levels are kinda low, I know the perfect way to help restore them.
Kakazu: I will pay you money, if you sleep with me.
Pein: I'd like to dominate the world, or you, either one's fine by me.
Deidara: My hands are good for more than just blowing stuff up.
Yamato: You look stiff, but I've still got some wood.
Naruto: I have nine tails, think you can take them all in one shot?
Gara: Have you ever been Shikakau'd?
Kakashi: I'm starting a larping session for Icha Icha!! Wanna join?
Lee: Go out with me and I'll protect you until I die/ the lotus blooms for you.
Gai: Wanna see the power of youth's duo meaning?
Shikamaru: People say I'm so lazy, but not after they leave my bed room.
Choji: There's plenty of me to go around.
Orochimaru: I have a very big snake.
(all off the top of my head)