The sir is cute. It's a very obvious play to get under Phil's skin. Loki does like to do that and it's amusing which is why it rarely works.

He reaches into his jacket pocket and pulls out a slip of paper which he offers to Loki. "My address. If you don't remember it from the various times Barton and Romanoff have broken in. If you prefer privacy for this. Or we can start at our favorite stomping ground."

If Loki's more comfortable in public for now Phil understands. It's a lot to trust someone with this and yes, Team Delta breaks into his place sometimes and he lets them get away with it because they are his favorites.

"Seven o'clock." The elevator dinged to signaled it had reached their destination. "Text me your choice."

And he stepped off to let Loki actually think about it without him there to influence him.