Flexibility is key

http://www.collegesexadvice.com/suck-dick.shtml

Not too gentle, not too firm and definitely no teeth but plenty of tongue.  Slow, deep strokes that always keep the head inside her mouth.

Slow deep is good, passing the tonsils is best, hands stoking shaft and balls occasional licking and sucking balls and taint, all with eye contact.

... except the first one!  Who the heck it that flexible... assuming they'd want to do it?  

As I hinted, my idea of perfection involves two ladies.  The variations are limited only by their imaginations--and I've been lucky to have been with some very imaginative provider duos. One of my favorite variations is one working on Rod Johnson while the other does BLS plus prostate massage.  I think I had my most intense orgasm ever from that.  

One thing I've never tried is Fire and Ice (no, not the Winter Carnival event!). That's where one woman warms her mouth with hot tea or the like, the other cools her mouth with ice water, and they take turns licking and sucking. Anyone ever try that, and if so how was it?