Happy New Year to you too, Mandy!
I like your stories, they are well written and the element of slightly reluctant lesbianism is just what tickles my fanny
I can see how you're a bit stuck though. Both stories start with the premise of "straight woman/women coerced into lesbian sex" and thrive on the inner confligt of those women. Once they give in and enjoy, you've closed the supsense arc, because the conflict is resolved. So to get the suspense going again, you need a conflict again, in the best case even more intense than before, and your characters will get three dimensional again in your head.
In Caught, I could imagine that Marie secretly starts to love Holly's attention, while still rejecting the bisexual part inside herself. You could start a game of cat and mouse between those two, where Marie performs some minor infractions in front of the camera and Holly demands further payments. And you could bring Tina into the game, with intentions of her own, and put her into a position of power too (like e.g. giving her the key to Marie's locker to fetch something for her without thinking of the tape(s) there). So the new premise could be something like "Marie stumbles from one sexual adventure into the other, slowly but reluctantly expanding her circle of female lovers".
I don't know how you feel about getting kinkier with your Friendly Contest, but to me the story screams to do so. A little bit of exhibitionism and soft bondage could open an almost endless range of possibilities, like the two others manipulating Kathy and Janice into showing off their newly acquired skills at a party where some more of Lauren's female friends are present, and both of them ending up in the bed of Sheri and Kevin with a little bondage play involved. And don't forget about all the different kinds of toys they could be introduced to
So, that's my 2ct, maybe you can use any of them, and I hope to read more from you this year - it would be shame to let your writing talents gather dust. Feel free to pm me anytime if you need some help or prodding

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My Stories:
Casual Acquaintances - A story about female love, control, devotion, pain and pleasure.
*)
Becoming Lisa's Pet - An all-girls college coed's willing descent.
*) Übersetzt ins Deutsche: Zufallsbekanntschaft - Eine Geschichte über Frauenliebe, Kontrolle, Hingabe, Schmerz und Lust