An Observation

I watch his cock advance and, then, retreat
And feel my lips connect with every move
He makes. I hear groaned pleasure, as his meat
Enjoys my passive offer, while I sooth
His need with flat of tongue, that lies beneath
The shaft that he's pushed in. Alacrity
Is just a word that comes to mind. The sheath  
(my mouth) elicits his harsh empathy,
By being pressed in place, so that his balls
Can brush against my chin; when his cock swells,
Finding the throat so tight, it just enthralls;
As much as seeing cock-shape, while it dwells
And fills my narrow gullet where he's splashed
Before and will, again, quite unabashed