Jenn with two balls in her hands watches as the latex starts to spread up Susan's body and start to change, first going around to her back and butt before the gooey latex dived down into her rosebud making Susan moan before Jenn shakes herself to get back to her plan.
Jenn walks up behind Kyle’s mother (hence forth known as Barbara) as the latex covering her upper body Jenn thinks back to the exact wording of the balls effects "Once melt, they will leak out in the form of a black latex goo which will attach to any body touching it. Of course, it will attach to its host" This meant that if someone was close enough when the latex come out they can be what it attaches to along with the host so Jenn first inserts one ball into her vagina then while shuddering and being as close as she could to Barbara and inserting the other one into Barbara vagina.
The first to start to leak is Jenn so she sat on top of Barbara's back and started to finger her hoping this would be enough for her fetish to be the one that the latex uses.