Most Helpful Guy
I have found Victoria secrets and calvin klein have sexy and comfy pairs to choose from. both you can buy online but it is best to buy a pair in person first so u can feel the material u like and usually I've found a men's large underwear will be either a ladies large or xlarge depending on the cut. so if u like thongs or G-strings, they are a little harder to wear to hold everything in. low rise is also harder to wear. I find bikini's, boyshorts and cheekys are the best.
good luck finding some pairs.