I think as long as you're not using them as a substitute for being with your partner, then there shouldn't be a problem. But everyone has their personel preferences, and it is best if you can be open and honest and talk about what you like and don't like.
As for being intimidated, I think as long as it isn't the size of your forearm, and that's what you need to be satisfied, a guy shouldn't be intimidated. lol. Of course, like I said, everyone is different and it is best to talk about it.