Need the name (in description)

So, a long time ago , i saw a movie on TV. the scene was set in a bed room with a young girl and young boy, may be teens or younger. they were kind of trying to explore sexually. The dialogues i remember are that the girl asks if being naked is necessary. And the guy replies that yes he thinks so.
Would be thankful if anyone could provide with the name of the movie :)
A link would be appreciated too