  This message is complimentary towards the girl. It is vague so it could apply to anyone. When you send a vague message like this, you reduce the risk of her responding negatively to the message. It also implies that he is the right man to bring out her submissive side. 
Her: Oh yeah 😏 and what would those be?

Cute & curvy, with a bit of a wild side. A sexy feminine energy which tells me there’s a fun submissive side to you for the right man 😉