i love when he cums inside me and i can feel it "hit". usually sends me into a screaming orgasm. dunno if he's hitting a certain spot or if it's the combination of the feeling, hearing him growling and knowing if i don't cum again now, i'm gonna have to wait a few minutes for him to catch his breath.
i agree that having the final orgasm WITH your partner kicks ass. i love it when i know we're both about to collapse into sweaty, drooling, shivering puddles.
i'm just now starting to appreciate oral and finally appreciate fingering (maybe my other partners were really bad at it or maybe i'm just really comfortable with my now-s/o..who knows) and i love getting all worked up slowly until i'm begging for him to just drag me on top of him and let me fuck him. and i beg easy...it's so much more fun when he "deprives" me for a little while before giving in