Translation of asscheek in German

My mom and dad used to speak English when they wanted to say something I shouldn't understand. In this way I have learned English. I did not tell them till late, but I did understand every word they said.
Then you can add me as a new friend in your Facebook account. I'll confirm it and you can send an email to my new address if it is publicly displayed and available. Or you can send it through SMS.
Three years ago I was with my friends in South Korea whom I met in my English class in Washington. Then I was in America for another three years, one in Oklahoma and two in Alabama.