She ejaculate you

Tahini slides more fingers into your anus.

"Uggh!"

"Don't worry. I'm not going to fist you. That would defeat the whole purpose of this experiment."

"Experiment…" You struggles as Tahini continues to finger your anus, "I thought this was….a checkup?"

"Checkup, experiment." Tahini shrugs, "All the same to me."

She then uses her other hand and slides more fingers into you.

You can feel your anus spreading up.

"Shit!"

"Almost there." Tahini says as her fingers slide in deeper, as she tickles with your prostrate.

"Fuck! Fuck!" You close and strain as pleasure and pain mix. It doesn't take long for you cum onto the exam table as Tahini uses her expert fingers on you ass.

"There…" Tahini takes off her gloves, "All done. Now…"

She flips you, letting your back hit your little cum puddle, "Let's see the rest of you."