Don't tell her about him

Thinking it might allow me some ability to nullify the issue, I chose to omit the fact that her brother was now in the room where I was currently taking her. While she was still naked. Offering to take the lead so that another awkward situation could be avoided, I left the room with Bella in tow. Peering around the corner, I didn't see anyone in the lobby so I motioned for Bella to keep going.

As we got to the door of the room, I stood to the side to allow her to enter first so that I could block her escape when she realized what I had done. Stepping into the room Bella saw her brother almost immediately but not fast enough to avoid giving him another full frontal show.

"What the hell! No!" she shrieked as she turned to flee from the room only to run into me. She didn't get any further than that. Trapping her in a bear hug, I picked her up and carried into the room and kicked the door shut as I passed it.

"Calm down. I asked him to be in here. He told me your mom sent him to get potentially vital information about your health and provide anything I need."

"Why does he have to be in here though?" She whined while hiding behind me to block herself from her brother.

"Because if I have a question that you can't answer, I don't want to have to go hunt him down."