hoover: I haven't asked much how it compares, but for me I started out with a big suck fetish, always spying what I could lock my mouth around and then sucking the hell out of it. I never really thought about going down on a guy until a friend who knew my perpetual interest suggested I might like the challenge. It turned out I did, including the cool reactions I could get depending on how I sucked. Personally, I wonder if three things do not all contribute to through-the-roof head: Anatomy, technique, and attitude. For the first, the larger size of the male mouth means more can be accommodated with greater power. For me, this is definitely true as my mouth is cavernous and my tongue long and flexible. But also, my jaw muscles are unusually strong enabling me to not only hold out a long time but to pull suction like a vacuum cleaner. Technique and attitude are combined as the more creatively interested the sucker is, the more he will apply different combinations and work at perfecting them, such as inhaling every inch of length to the root and increasing how long it can be swallowed there. Imagination also plays a role as I have found a guy can really feel a difference between methods when I focus on impersonating various objects/actions that suck (in the right sense). Completely giving over to what your oral anatomy is capable of is another part, too.