Though they may look strange at first, crotchless panties are definitely something that you should add into your lingerie drawer. Crotchless panties are extremely sexy to a man for one reason, easy access. The visual of you being covered and still having access wil be insanely hot.
Another reason that crotchless panties are appealing is because they do not look like they are crotchless until your legs are open. The sheer excitement of having a secret to surprise your lover with will up your excitement and when he sees what you have on, his arousal will shoot through the roof. They usually are made of lace or satin and are available in many colors.
There are also backless panties that show off your butt. These give an especially nice view for him in rear entry positions such as doggystyle. Just like in the crotchless panty there are many colors and styles of lace or fabric to choose from.
Another option is a crotchless teddy or body stocking. This helps to create the illusion that you are dressed in a sexy outfit but with the added benefit of coverage for you and the benefit for both of you of easy access.
The biggest turn on associated with crotchless and open lingerie is that you can be fully clothed wearing a dress and still have sex easily. If you really want to take advantage of this type of lingerie, you can wear them under a dress on a date with your partner. You can even tell him that you are wearing them during your date to create even more anticipation. You might want to wait until you are done with your meal though because chances are that he will be asking for the check and whisking you out the door.