Well, we (me and my first wife) heard about Pop Rocks being used in sex, and she, being the experimental wild girl she was before the surgery (Car accident, drunk driver hit her, the internal damage eventually caused her death :( ) decided to see how it felt for her, so I bought some pop rocks and a climax control condom (I didn't know if the pop rocks would help me orgasm if stuck my penis in her whilst the pop rocks were in use, and we like to have long intercourse) and went home. We figured if we got her a little bit loose first it would feel better, so I started fingering her, and used my tongue to polish her vagina (We figured my saliva would help the pop rocks fizz). Then we slipped one pop rock in. She said it felt kind of good, so I put in a few more. She claimed it gave her a full-body orgasm when combined with my licking. After this she went into the bathroom and douched, so that she wouldn't get an infection (She didn't). And now I'm with my second wife who isn't as experimental, so when I asked to try the pop rocks thing she punched me in my sac (We like rough stuff though) Anyway, I included a lot of extra information so that you could know what will work, and if your asking because you want to try this on your lover you should be known of the consequences she might inflict on you if she's not as experimental.