Life is indeed was very good for you, as Sydney continues to caress and kiss you, and teasingly rides her pussy on your cock, which is responding again as if it still desperately wants more bliss.
Your thoughts fill with fantasies and return to your dream of Sydney as a domina in black vinyl with boots. It seems to fit your predicament, with Sydney riding you blissfully from above.
You don't think you can cum again, so soon after cumming twice already today, so you don't immediately stop her, but just lie back, enjoying Sydney's attentions.
But you begin to worry about what might happen.
So you ask her if you can go down on her instead of continuing this hot, wet, wonderful teasing fucking, knowing how much safer that would be.