Dan, but it's not exactly fair

In a panic, you quickly jab your tongue forward, sliding it between Vivien's waiting lips.

"OOOOHHHH!" For a second you think Vivien is giving you sounds of approval, but to your dismay, you quickly realize it's coming from Olivia.

You waste no time, gliding your tongue upwards till the tip reaches her clit. Using pure efficiency and care you give her several controlled flicks. It's clear that your work is appreciated as you feel Vivien's thighs begin to tighten around your head.

"OOOOH GOD!" You hear Olivia howl. Something about her tone doesn't seem right though.

You continue your flicking motion, taking breaks only to slide your tongue down, making sure to give the rest of her some attention.

"FUCK! OH YEAH! SO FUCKING GOOD!" Olivia's voice echoes through the room. You pause briefly as you realize what seems off. It's a voice you've unfortunately heard from her several times before, she's faking it.

Now fueled by anger and fear, you begin flailing your tongue, hoping that somehow your talents will overcome Olivia's obvious plan to sabotage you. Vivien's grip around your head begins to lighten a bit making it clear you're no longer hitting your target!

"OH YEAH! OH YEAH! IM GONNA CUM!" Olivia shouts, not convincing you in the slightest. "OOOOOOOOOHHHHHHH!!!!" You drop your head down in frustration knowing that she's announcing your defeat.

You pull your head back freeing it form Vivien's legs as you look over to at Olivia. She leans back with a smug grin as Dan sits patiently by her side.

"Well, you had potential Dear." Vivien says sweetly to you. "But I guess my Dan is just better."

You begin to feel your blood boil, as you know you didn't lose by your own hand.

"Way better." Olivia says as she pats Dan gently on the head.

You can't let her get away with this, or can you? How would you even prove it? You think for a moment, planning your move carefully.