You push down on the back of the trike with your feet, raising your hips as you start to slowly rotate them. His hand presses firmly down on your stomach, prohibiting your movement as you feel his wet tongue against the inside of your thigh. Slowly it slides up and between your legs, stopping just before it gets to your wet pussy. You feel his tongue gently slide up one side of your pussy, then down the other. Never does it actually touch it, just moving alongside your wet lips, then over the top and down again.
Again you move your hips, pushing them towards his face, hoping his tongue will explore your pussy. Then his hand moves away, returning under your ass to help lift your hips. You push down harder on your feet to help lift your hips also, making yourself totally open to him. His hot breath is on your pussy again, then the tip of his nose, as it gently works it's way between your wet lips.
You feel his tongue, just the tip of it, as it slowly traces a wet circle around your asshole. The circles becoming smaller until you feel the tip of his wet tongue pushing against your tight ring. All the while his nose is sliding up and down between your lips, brushing against your clit on every upward stroke. You push your hips forward, and you feel his nose push hard against your clit, while his wet tongue forces itself inside your tight ass. His head moves around, massaging your clit with his nose and sliding his wet tongue in and out of your ass. Then you feel his tongue slide across your ass, along your perineum, then finally ever so slowly, you feel his tongue push it's way inside your aching pussy.