It's a mix of both for me. I love wearing miniskirts, which I think are very comfortable and sexy. I wear satin bikini panties that are far more comfortable than my old male underwear...oh yeah, and just a little bit sexier! I had a medical procedure the other week and it made me realize how uncomfortable my old male underwear is. I am also comfortable in a pair of tights and a sweater dress. I lounge around the house in tight fitting, flare leg yoga pants. All very comfortable, yet also sexy IMO.
