Smaller tattoo designs have much more options on where you put them and also look less aggressive that the large ones. An angel on the inner thigh has got to be one of the most sexy places you can put them but don't overlook other great areas.
Sexy Angel Tattoo
The nape of the neck is a wonderful place to have a tattoo but of course you can never really look at it yourself. This isn't always a bad thing, you'll never get tired of seeing it and of course it is a really sexy part of the body.
An ankle tattoo is another cool place for an angel. It is easily covered when you don't want it to show but can be on view when you want to attract attention. Some people say that this is a painful area to have a tattoo because there is never very much fat under the skin but I didn't find any difference.
Don't rush into getting the first design you see. Try to find something original, interesting or funny when picking your sexy angel tattoo. Try an chose a design that reflects an aspect of your character or outlook.