When I think of intercourse I think of 3 different categories for it.
Fucking- I usually associate this with one night stands, random hookups with this. You do it just cause you want to feel good and get off. Theres absolutely no emotional connection coming from both sides. Hell there doesn't even need to be a physical attraction thing going on! Your just here for a quick easy lay.
Sex- Theres a bit more attraction and or connection from both partners in this. But your main goal still is just to feel good and get off. Basically fucking but much nicer but not on the same level as making love.
Making Love- It can be anyway you like it, fast and rough or slow and gentle. But theres that intense connection and love between the two partners and you want to show the other person without having to say "I love you, blah blah blah" how strongly you feel about them.