There is the thought that someone cares enough about your pleasure to not just *sit* upon it but to take it into their head and do it with skill. (at least thats the motivation, actually doing it right is another matter)
It feels like..lets say you have the water-tight capacity of a ziploc bag.. and on the outside of this bag is warm, warm water.. that ever so gently pushes back. Now imagine the ziploc bag is actually jello. Now thats pussy.. mouth isnt (usually) as deep, nor as consistent from back to front as pussy..as the lips.. teeth, etc.. ya know. They dont all wrap around. Nor would they do so equally as pressure-intensive as puss.
Now..imagine that your clit is away from your body, and about half a foot long. (the average size, I'm told) Now imagine if you could feel this wet, ever so soft.. but pressing.. feeling of pressure going over every last centimetre of your clit.. well, for a clit it'd be millimetres, but.. for a COCK.. CM's. And it repeats... over and over.
And you know that when you cum, its not just going to drip out or get absorbed or turn into an interesting scent an hour from now. Its going down their throat and you get to watch them enjoy it. (or fake it. It doesnt much matter.. insofar as that its inside of them and STAYING THERE! GUA HA HEE!)
and then.. they go cook char siu beef with rice and noodles. Deliver it to you while you play Rise of Legends while still tingling down below. Btw, Alin rules vinci and those damned cuotl! Then she bends over, exposing her ripe peach of a puss and..
And then I stop typing all this into a chatbox and go wake her up with SUBTLETY! LATER BROTHERS!