The contoured egg is best when used on your clit. It is palm sized, so it is perfect for that use, or even nipples, but not big enough for actual penetration like a traditional vibe. I tried it and I felt absolutely nothing, so I just stuck with using it to warm me up for later play. I think this would be perfect for anyone who wants something on the small side, discreet to use, just for foreplay, or maybe while playing in the tub, shower, etc. Since there are a variety of functions, you can spend some fun time experimenting with whatever works best for you. It is very flexible and that is a feature I absolutely love! I literally had the little "finger" wrapped around my clit and, I have to say, it felt wonderful! It is called an egg but it looks more like an elongated finger that can bend and conform to however feels best to you. I just held it in place and cycled through every function just to see what would happen and it warmed me up very nicely! For something in such a small package, it surprised me! It wasn't enough to completely get me off, but I got creative and it worked like a charm!