Guys, "You're so easy" DURING sex? What does this mean?

Ok so me and this guy were hooking up for 2nd time, couple weeks apart. Got a hotel and was pretty smashed. This guy is amazing in bed and made me c*m multiple times and in the middle of another round of sex he was talking dirty and said "you are so easy babe, so easy." What does that mean?
Like I know usually if someone calls someone easy it's said behind their back but I felt confused him saying it during sex...
Guys, "You're so easy" DURING sex? What does this mean?
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