He kissed deeply, almost consuming her. His body was a spring coiled tightly, about to snap as her body tightened around her. Then it happened he snapped and came, crying out softly into her kiss.
He rode the white hot pleasure as far as it could go, until there was nothing but her own shaking pleasure. As he surfaced from his pleasure, ice started to form in his body. He had just had the best sex in his life, with Buffy, a hunter and hater of his kind. This could only end in disaster for him and his heart.