"Good boy," she replied with a little smirk. After all, the last thing Alex needed was to be scarred for life by anything unsavory their parents might be doing. And considering it was Valentine's week and knowing their parents, giving a warning would be the best thing. Patty watched him closely as he astral projected himself to Chicago. She wasn't expecting anything bad to happen on this end, the complex was safe, as their parents had told her. The only bad that could happen was in Alex's physical body, so she kept a close eye, for any potential signs of stress that she'd have to do something about. And she really hoped he had the magic words to get their parents back here within the few minutes, otherwise they'd have to use a teleportation method.
Thankfully the Seal had been quiet and Hell hadn't broken loose, allowing Prue to fully enjoy the vacation in Chicago. The concert had been really good, and the sight-seeing they'd managed to do when it wasn't Valentine's Day had been good, too. Though currently, Prue was reading, recovering from the previous days events, which were amazing and breathing-taking, to say the least. She was enjoying the peace before they ordered room service, at least until they had an unexpected visitor.
She'd seen the boy materialize out of the corner of her eye, her head snapping up and a moment later she was on her feet, her book on the floor. She raised her hand to fling him backwards, but she was stopped in mid-motion as the boy spoke to them. Blinking in surprise, she wondered if he was telling the truth. It took a minute to actually digest the fact Alexander had introduced himself as their son and that they also had a daughter. Okay, wow. Just. Wow. As soon as the shock faded a bit, Prue crossed her arms, looking the boy up and down. He hadn't attacked them, but that didn't mean he wasn't trying to set a trap for them.
Glancing at Damien, she looked back at Alexander. "How are we supposed to know this isn't some trick? You didn't attack when you clearly had the advantage of knowing where to find us. But this could be a trap. So what are you? A demon sent here by someone we pissed off? Something else?" Because yes, while Alexander resembled Damien and had her married name, that still didn't exactly make her trust what he was saying. She'd been tricked too many times before, gone through too much to just blindly trust someone that suddenly materialized in the hotel room. She kept her gaze fixed on Alexander, just waiting for him to make one wrong move so she could fling him backwards into the wall.