Inseminating Sex with a Slimy Slug Girl

A slug who traps passing men to breed with them.
Recently, not as many people have been venturing into her neck of the woods, so she was considering changing her capture method until you happened to stumble into her slime.

Slugs have something called a "love dart" which is used to raise the chances of fertilization in a partner.

When she pierces her partner's prostate with it, the prostate becomes able to hold her fertilized eggs.
As a result of impregnation, the man loses the ability to procreate as a human and becomes an egg sac exclusively for her use.

Of course, there isn't a man alive who would willingly submit to such a fate, but thankfully, she has her ways of bringing you around. Her mucus is incredibly sticky, with numbing properties among other things, and she'll put it to good use to bend you to her will.

As her latest victim, it's your turn to be immobilized, slimed, penetrated, and impregnated.