My boyfriend and I are really close, like best friends in that we usually wear whatever we feel like with each other and don't really care. We still think the other looks hot as efff in sweatpants and no makeup. We're just that comfortable lol.
However, I'm feeling like I wanna blow his mind away. He's always continuously complimenting me when I'm definitely not looking my best, so I'm feeling like I want to get dressed up for him for once. Just because :) We'll be jusy hanging out tomorrow. Nothing special really (lunch, park, etc).
If you got a good figure, I think wearing a short skirt will turn on almost all guys, well at least for me. But if you're going to the park then short skirt may not be convenient. Maybe wear a knee length skirt.