your birth control fights for its life

Deep inside, the second load has joined the first—delivered even more directly this time, thanks to Alex's cock acting as an unwitting plug through the night. Buried deep and unflagging in his morning arousal, it had sealed in the previous deposits, preventing any natural drainage and keeping the pooled semen pressed right up against your cervix for hours. No escape, no dilution—just constant, unrelenting exposure to the alkaline environment.

Now, with his fresh release, the sperm swarm anew: millions more whipping their tails, surging forward in waves through the warm, saturated canal. They crash against the cervical barrier, still thickened and hostile from the cream's effects. The spermicidal gel does its grim work—trapping, rupturing, immobilizing. Tails falter and curl; heads dissolve in chemical defeat. The plug claims victory after victory, the mucus matrix littered with even more lifeless debris.

The gateway holds firm. Nothing breaches into the womb. The fallopian tubes remain silent sentinels.

But the strain is mounting, more than before. Alex's cock, functioning as a perfect stopper, had amplified the issue: by keeping everything contained overnight, the seminal volume built up pressure, and the prolonged contact has nudged the pH higher still—closer to the alkaline tipping point the experimental cream wasn't fully tested against. The gel's edges are fraying subtly now, microscopic strands thinning where the constant bombardment of enzymes from dead sperm and fresh fluid eats away at its structure. It's still a fortress, still deadly to invaders, but the walls are under heavier siege, working harder to maintain integrity.