The look Loki gives Phil is definitely not a pout, because he is far too refined to pout, but it is reasonable for Phil to mistake it for one nonetheless.

"Being good isn't exactly my strong suit." Despite his protests he hooking his thumbs under the elastic band of his underwear to push down both the briefs and pants at the same time. As he does he leans closer, careful to not touch Phil with more than his hands, but close enough that the heat of his skin and the whisper of his breath play across his cock and lower abdomen.