If your bride is the romantic type (and most are), you make her feel loved and special when you put a lot of time, effort and thought into something. This applies to pretty much everything you do for her, including sex.
The image I’ve chosen for this post gives you one way to make sex a bit romantic. Cradle light, some nice scents, music, and other sensual touches have the same effect. A bubble bath by candles or a long slow massage – planned and prepared ahead of time, also get her going romantically.
The ultimate, if you can manage it, is a nice dinner and a show, followed by a night at a nice hotel. Go to the hotel ahead of time and lay things out perfectly.
Of course, you can’t do these kind of things every time you have sex – but you don’t need to. Occasional romantic lovemaking will have a profound and lasting effect on her. It makes her feel like she is loved and desired, not just “someplace to put it”.