Severus went still for a moment as he considered that. He couldn't deny it. He'd always felt strongly about things, right from the very beginning when he'd loved Lily Evans. He quickly shoved aside the tangle of emotions that rose; he had better things to concentrate on now than that old mess.
"It may have been a factor. Why begin something when I cannot continue it?" He groaned when Draco bucked his hips. "Very good." He slid his hands underneath Draco to get better leverage then leaned down and kissed him as he continued his slow, almost lazy movements.