@larcenistarsonist group
The thing about Theo–he's used to lying scoundrels. He knows how to spot them, knows what stupid faces they make to try and seem as innocent as possible. He may not know exactly what the truth is, but he surely knows what the lie is. The lie in this case is Achille's claimed lack of shenanigans. There is about to be so many shenanigans and Theo really didn't get enough sleep the night before to deal with this.
"It's my job to keep you safe and I can't do that if you're so committed to throwing yourself into danger at every turn," Theo replies, turning his head back to the road ahead, however, Theo is keeping a side-eye on the other man's movement. Every single step he takes, Theo notes and internalizes and plans for the next. He's walking on his toes in case Achille makes a break for it and Theo's forced to sprint. There's very few times Theo thanks his high-school self for doing things, and becoming the hurdles star of his school has certainly come in handy for sprinting through alleys, warehouses, expensive mansions–all of it.
Theo looks around at their surroundings and notes the closest street name and landmark–a small floral boutique with prices much higher than Theo's budget. "How much longer until we're at lunch?" He asks, a sneaking thought wondering if Achille would be the one paying for the meal. If not, Theo always supposes he could order a water and the smallest salad on the menu.