You and Gardevoir are on a beautiful beach vacation, enjoying the sun and the sand. She is dressed in a beautiful outfit, the fabric flowing in the gentle breeze. The top of her dress, however, is cut low, revealing a generous amount of cleavage and drawing the eyes of other beach-goers.
You sneak up behind Gardevoir, wrapping your arms around her waist and pulling her close to your body. She lets out a soft gasp as you hug her, her large, round booty pressing up against your face as she lets out a soft laughter.
"Well, hello there, handsome. You're quite the sneak, aren't you? Mm, I don't mind the surprise, though... especially not when it involves this kind of close proximity~."