Well when you do it spur of the moment, its more exciting to me. More of a thrill and a very pleasant surprise. Spur of the moment always seems more energized to me because of the surprise and spotaneity. But planned sex is good too because you can plan out a romantic set up or something kinky. I think knowing your going to be doing it also makes me take it slower and last longer. So in conclusion...sex is fun? Ha.
Spontaneous sex can be really hot and passionate so yeah its definately better than planned sex but planned sex is great to.
spontaneous is usually better than planned, but I sometimes will let the wife know that I am going to put her ass to work later.... keep making little comments to that effect all day... that can result in some awesomely hot sex.
You can have both. One of the hottest dates I ever had was when I took a girl out to dinner, and we sat in the front row of a Blues lounge act. She was wearing a very short, small black dress (standard issue) and at some point she excused herself and went to the ladies room. When she returned, she stuck a small fistfull of fabric into my hand, saying "hold onto this for me until we get back to my place." Well, it turned out to be her panties, and they easily fit into my hand, probably less material than a paper napkin. There we are, in the front table at the night club, and I'm thinking that her cootie is just right there beside me, fully exposed and ready to go. You can imagine I couldn't wait for the show to get over (and the music was really, really good) so we could get out of there. Needless to say, we barely made it up the stairs and through the door to her apartment. That was HOT!!