Wendy becomes helpful (and submissive)

"Why did you keep me...waiting?"

Wendy was looking at the door sensually as it opened, presumably not expecting you.

"Taylor, what's going on?"

Time to make this fun.
You make Wendy into a privately submissive young lady. She respects/fears power greatly, so will do whatever you, Taylor or the Coach ask her to do.
You add in a retroactive wish that Taylor has been exploiting this in her for a while.

"He knows everything."
"About the...and you...oh my, Mistress."

Mistress- that's a change. You like to hear it.

"He said he was coming over to explain this new...relationship between me and him. In my haste and surprise at his action, I forgot that tonight was, well..."
"Say it," you command.
"The night that you come over for our private video shoots."

You notice a few cameras in the room now. Another retroactive change, you gather.

"I had no idea," you admit, "But this works out great. You two can shoot another private video...with me."
"I oughta," Taylor says, standing up for herself.
"If something happens to me and I don't stop it, the key contents of your site will automatically be sent to the Principal," you say, bluffing.

Taylor tries to act tough, but looks at Wendy.

"Is that possible?"
"Yes, Mistress."
"Damn. Well, how about you just watch instead. No, it's fine," Taylor says, cutting off a concerned look from Wendy, "Trust me- it will be great."