Surprised

I start out masturbating by touching my nipples with my finger tips and running my bottom of my thumb from my palm to the tip and make circles with my open palm. They feel so great to my palm and are so hard and sensitive. Then a small drop of cold lotion to smooth the play. I get so hard

No, that's what they are for.

My nipples are very sensitive and I always pinch and pull on them before I masturbate. I also use various clips on them. My nipples have gotten large and are about 1/2 inch wide and stick out 1/2 inches.

I have very sensitive ones as a male . If my wife starts biting them I get so hard I start to ooze from my cock.

Oh yeah, just that feeling of being bitten and licked by my girl is enough to drive me crazy! Love it.