Pistonfuck

Pistonfuck
SFX
Tier	3. Immortal	Type	Steel
Variety	Pummel	Speed	Instant (1)

Pistonfuck is an essential face-fucking stunt emphasizing superhuman speed and lightning-fast, thunderously forceful thrusts—and a counterpart to pistonsuck.
When You pistonfuck myself or another exceptionally fortunate slut, a lightning-fast thrust drives most—ideally all—of the Godcock's glorious length through my face faster than the eye can track. The invincible tip plunges it down my cunt-throat to SLAM my cervix, only to immediately rip it back out with blinding speed. Both the rebound off my cervix and the minimized sub-frame contact with my cervix heighten the force exerted against it!
Pistonfucking isn't limited to a single thrust, with the term implying rapid lightning-fast hammers every single second. This page features an audio example of pistonfucking at approximately 8 DPS (Deepthroats Per Second) to the right, and a video or approximately 6 DPS below. Such is (nearly) achievable even at mortal tier. Yet this stunt assumes dozens of DPS at immortal-tier, before ascending to hundreds of DPS or even thousands. This informs the stunt's name, as the impossibly-fast thrusts resemble the furiously roaring piston of an engine. ♥

See also