I bought these as a joke..well, the joke was on me.They gently sucked at my nipples and made me so wet..........my nipples were pink and hard and erect for a long time after removing the suckers. My husband thought I was still wearing them while going bra-less to the grocery store. Even the brush of my tee shirt against my nipples...made them harder then ever before...I orgasmed the entire time in the store....