My on-again/off-again FWB is/was awesome in that way ("was" because we're now long distance and haven't seen each other in a while). My favorites:
(While pounding away): "Your pussy is sooo slippery and wet for me, baby"
(With his eyelids fluttering): "I love the way that tight pussy grips my hard cock"
(During doggystyle): "That's right baby, back that pussy into me..."
(When I scream I want it harder/deeper): "You" *slam* "want" *slam* "this big cock" *slam-slam* "deeper" *slam-slammity-slam* in that sweet pussy" *slam-slam-slam*
(Afterward): "I love your pussy. I love feeling the crook way in the back of it and hearing you whimper before you cum..."
Sigh...
Damn that is HOT.