Metal grill vs the clit

Recently my boyfriend ate me out while he still had his grill in....AMAZING! Idk what he did but it felt almost like a waterfall, as if i peed on myself twice. It was almost as if i squirted and orgasmed at the same time, oh and it was the first time thats happened to me . Am i the only one? Was the metal grill part of the equation? We're doing it again tonight!