No, dear, the thesaurus you had for breakfast was wrong. This is not/was not/will never be sexy.
He grunted at the intense pressure exerted by her climaxing snatch
Uhm, what? I mean, I know what's meant by that, but... uhm, what?
I seriously have no idea why I keep reading. It's like watching a train wreck. You want to look away, really...
and no force at his disposal could stop the flood of semen that roared it way up his length
Roared? ROARED? O_o
Edit the second:
She gasped out a surprised cry as his dick head pressed through the tight ring of her cervix
You, dear author, are either male or have never gotten a medical exam "down there". Otherwise you'd know that even a q-tip poking around there HURTS LIKE HELL.