These were mailed to me by a friend, if you know the original source please /msg me
Poketto-ni futon-ga hait-teru - I have a futon in my pocket
Lub-hoteru-EEK-U-ZO!!!! - Onwards to the Love Hotel!
Kimi-te honto-ni kirei-dane - You're really pretty.
Mae-ni atta-koto aru? - Don't I know you from somewhere?
Ichiman-en kashite-kureru? - Can I borrow 10,000 yen?
Kino-watakusan nomisugita-ne? - You drank too much last night didn't you?
Nampa-shita! - I scored (when playing a girl for sex)
Kimi-no-koto igai-wa kangaerarenai - I can't live without your love.
Bakku shito-ni suwaro - Let's get in the back seat.
Ima Shiyo - Let's do it now.
Shinu-hodo aishiter - I love you so much i could die.
Kimi-to netai - I want to make love to you.
Nani iro-no shitagi-o tsuketeru-no? - What color is your underwear?
Shikkusu-nain suki - Let's do the sixty-nine.
Bakku-de shiyo - Let's do it doggy style.
Shinken-ni naritakunai. - I don't want to get serious.
Itsu kekkon-shitai? - When do you want to get married?
Suitaru-ga ii-na - You have a nice figure.
Boku-no me-o mite - Look into my eyes.
Boku-ga hoshii-nowa kimi-dake - You're the only one I want.