The first thing to know is that there is no right or wrong answer. Every photographer will have different preferences. Truth be told, the photograph is ultimately about you, so do what feels best.
Having that said, there are a few things that I would suggest to avoid and things to shoot for.
Do Wear:
-What you like to wear and what you feel good in, that’s the most important.
-Coordinating outfits are great.
-Accents and colors that compliment each other are the goal. If she is wearing a particular colored top, maybe his collared undershirt can accent that color. If he is wearing a certain color, maybe she can accent it with her accessories.
-Colors that you know work well on you.
-The feeling you want to convey; lighter shirts on top give the pictures a more casual and bright look. Darker shirts on top give the portraits a more serious and thoughtful feel.
Do Not Wear:
-All black or all white tops, it does not create much visual interest and can make for a tricky exposure
-Big logos
-Busy patterns that may overwhelm the photo, and distract attention from the two of you and your expressions
-Things that are too reflective, some eye make-ups that have glitter in them, and things that shimmer will also reflect the camera flash. They can be distracting and can look a little weird.
-Try not to wear the same exact outfit as the other
Hope that helps!
