Do you think this is okay?

My bf and I have decided not to have l but we said anything besides that is fine...neways i know that he is bummed about not making love, so i want to please him-he recommended that we try oral...so neways last night i found myself in this position-he is resting on my chest w/ his legs spread and his in my mouth and he told me to suck on it....i've never heard of anyone doing this before..i found it wierd but he was groaning and seemed pleased..i'm just worried if it's safe or not-can this hurt me in any way? and also am I just supposed to swallow the fluid? there was a lot but i was afraid if i spit it out it might be a turnoff to him? and if there's anything else i can do to make him feel good, let me know-okay, thanks!