Salty penis liquid lol

Sa

Is it normal for a guys penis to leak during oral sex? My boyfriends dick didn't always leak and he's been battling a porn addiction and he quit masturbating for awhile and now when I do oral on him he leaks this very salty gross liquid until he cums and I can hardly stand it tbh.

Btw I know what precum is, I was asking BC his never precame this much