Is this normal?

So yesterday after work me and my babe was having sex in my car. I have a blanket in the trunk to lay underneath me cuz I'm a squirter. Well he made me squirt and it was like this dark brown reddish color and it kinda smelled weird. Like it sometimes smells but that time it was extremely strong. Idk if that's normal or not. Can anyone tell me why it was that color and why it smelled?