Busted

As we left the bathroom, we didn't bother checking if someone was there, which was a huge mistake. We ran right in to Nathalie, who was standing in front of the door, as if she was waiting for us.
"Had fun?", she asked us.
Kate was surprised and jumped a little. "Oh no, what? Did....did you hear us?"
I just stood there, too shocked to say anything, we were totally busted, no way out of this.
Nathalie glared at the both of us. "I think we need to have a little talk. To my room, you both, now."

We all walked upstairs to the third floor and into Nathalie's room, where she locked the door behind us. Kate was looking like she would cry any moment.
"So", Nathalie spoke up. " What did you do in the bathroom? I hope you didn't have sex."
"No!", Kate immediately replied. "Of course not!"
"Then tell me. What did you do?"
"We....um....I gave John a blowjob. And before that, he....well, he fingered me. In the group room." Kate put her head down in shame. I still didn't say anything.
"Was it good?" I kind of expected Nathalie to get mad, shout at us or something, but not this. Did she seriously just ask that? "What, cat got your tongue? I asked you a question: Was it good? For the both of you?"
Finally I decided to say something: "Um, well, yes, it was." Kate nodded and mumbled: "For me too, the fingering, I mean."
"Hm, okay", Nathalie said after thinking for a second. "I think I know how we can resolve this. You do me a favor and I'll just forget this ever happened."
"Oh please, we'll do anything, just don't tell anyone!" Kate was basically begging for mercy.
"John, what'll it be then?" Both of them were now looking at me, awaiting my answer.
"I don' think we have a choice, do we?"
"Then, it's decided." Nathalie smiled. What the hell did she have in mind?