Seamus's smile faltered a little at that because, yeah, sometimes a new customer would try a smile or a wink. Seamus didn't think much of it, but nor had it ever occurred to him that anyone would know it was happening. It made his inability to get more than a couple of dates a year (if that) all the more unusual. "Sure, but it's mostly women," he pointed out, his mouth briefly going sour as he added, "that's your area, not mine." He tried to bring the smile back, but it was difficult. "Anyway, you know what I'm like." He didn't exactly go around sleeping with strangers. He'd always said it was because it was hard to feel comfortable around people he didn't know.
His grip tightened before he moved his fingers to rest in the inner crook of Dean's elbow. So innocent indeed, but they'd already suffered through the opening of the Chamber of Secrets and the threat to muggleborns - to Dean. "And if she's more comfortable with deception than violence then I'm sure I'd make a brilliant fake boyfriend," Seamus offered. "As long as everyone's clothes stay on, because she's still you sister."