Well to be honest, he didn't realize up until Paige said 'Weema Yindi Walker' that she'd even meant a girl, only it wasn't as if Paige could be blamed for coming to such a conclusion. Sam maybe a nice guy, but he was not always the most focused one. Pretty girls, did kind of take preference over most other things where he tended to be concerned. "Ah've met Yindi," obviously, pretty blonde, but he did kind of blush, may not have been an obvious blush but it had been there for a few moments. "Ah see," he mumbled out, and really he couldn't expect Logan to take Paige everywhere with him could he? Actually, this being Sam, yes he could.
Not that he was going to let that on, Logan needed to be reminded that he couldnt just go off and leave anyone behind, so Sam at that moment was thinking like the sterotypical big brother. Only it did kind of mess with his, I left my sister in good hands theory.
He did note the way that Paige then looked down at her feet, and sighed. "Okay Sunshine, yah need to tell me what else is gettin' yah down, cain't get used to seein' yah without that huge big smile on yah face."