Meaning: A girl in a white dress playfully covers the erections of a naked sleeping boy with her hand.

The scene you're describing seems to involve themes of innocence and playfulness. The girl's action of covering the boy's body can suggest a sense of protectiveness or innocence, as she is perhaps unaware of the implications of her actions. The contrasting imagery of a white dress and nudity may evoke themes of purity versus vulnerability. Overall, it could be interpreted in various ways depending on the context, but it's crucial to approach such depictions with sensitivity to the implications they hold.