My ex use to open her mouth wide and slowly stick my cock in her mouth without touching anything inside her mouth. You know that feeling you get when someone is pointing really close to you, not actually touching you, but you still feel it? Its kinda like that. At the ending point, I would hit her throat and then she would close her mouth and suck back up to the top. She would do this repeatedly and it drove me crazy. An added benefit would be if she could deepthroat it at the end. I think it was the anticipation of her mouth around my cock and feeling the heat from her mouth...I miss her, lol.
Yeah, I'd have to second that notion...That's funny too cuz it reminds of what Rocco and Nacho Vidal are always saying "Don't close, don't close,.."
Actually I would have to say that sometimes, less is more. What I mean is, when we're 69'ing, I usually get on top, and I really like it when she just sort of holds me in her mouth, and tugs on me a little bit. Normally, when girls really go at it, it makes my PC muscle contract, and it starts working the cum up into my cock. However, sometimes I like to just relax, and see if I can just enjoy the feelings all up and down my cock, without clenching my PC muscle at all....This way I end up getting super hard!
Another thing I like is to stand on the edge of the bed so that she can get on all fours, and stick her ass up in the air...Then I can grab on it and also cup her tits if I want to.
For me, it always feels the best when my cock is at an extreme upward angle (close to my belly) and she is gently tugging on it.
Of course getting deepthroated is awesome too, but I like that the best when the blowjob is first starting, i.e. when my dick isn't fully hard, and it can easily slip all the way down her throat.
Hope this helps!