I dried up during oral sex

Me and my boyfriend are both virgins but we decided to try some stuff out before we actually have sex. Last night we were making out and he was touching me and I was pretty wet and we decided to escalate and he went down to give me oral and for some reason I just dried up it felt good but I wasn’t as wet as I was before he tired to put his finger in and Dried up even more, I told him to stop and we did but once we got back to making out I got wet again is something wrong with me? Why is this happening and what can I do to help make things better?