Boyfriend erection plus cumming.

Im so sorry about the title, but i am confused, yesterday me and my boyfriend had sex for the first time (as in together, not virgins) his dick is big, but he was aroused but he couldnt get hard and he told me it has happend before, it takes him an hour or so to get an erection. Than we finally didnt get to do much, and were tired so left the sex for the next day. Today we had sex, his dick was erect somewhat, but when he put it inside me it wasnt erected that much, but it was fine, but the minute he cums, he had to pull out his dick really fast and he came like if he were peeing, like it was flying. This is the first time i ever see a guy cum like that, please tell me this is normal?