"Mm, thank you." There was a moment's mischievous grin before his hips settled against Steve's, a slight shift lining them up, side by side and Jim could barely believe it. Two layers of fabric between them, but he could still feel the warmth of Steve's body, the very obvious difference between doing this with him and doing this with a girl so long ago. It made him make a soft sound, his head dropping to Steve's shoulder as his body moved without his knowledge. This, he knew. He'd had practice. This was instinct and so many dreams and fantasies all coming together, and it left him trembling. "God, Steve..."