Greg was so fast that Theo wondered where the other boy had gone before the mouth went down on his cock. His head tipped back and he yelped quietly, as Greg took him in, his other leg coming up so that his feet were flat against the bed, both knees bent. His fingers were clawed into the sheets and he was pushing his hips up into Greg's mouth gently, panting softly to breathe.
He gasped with soft, short moans as Greg played with him, and as Greg started fingering inquisitively against his hole he turned his head to the side, eyes closed, making a sound that could have been a sob or a hiccup of pleasure.