He nearly dislodges the scarf at the finger. Instead, his breath catches and eyes go wide and a little glazed at the sudden insertion. He'd expected maybe a kiss or a tease.

After a moment he's got his breathing under control he's looking back up at Nate and shaking his head.

"If just that gets a finger, I look forward to what happens when I scream your name, love. Though I'd love to know what to say to get your tongue taking my mouth, Nathaniel." He always likes saying Nate's name, but now he's savoring it.