Please give free sex tips here, for guys or girls. Anything that comes to mind. Post it, if you mean it.
I'll start:
When going up and down the shaft and penis head while giving a blow job, SUCK while moving up and down, but esp when moving up. Sensation is wonderful, eliptical, rhythmic and feels full-fleshed. It feels like you're going up and down at the SAME TIME. It's just awesome. Consider it practice for playing the didgeridoo, with its circular breathing techniques and all that.