Greg was fairly engrossed with his task but he did notice Theo's legs pressing tightly around him; at first, Greg mistook it for a sign of arousal. And so he continued, only to come to in a moment as the erection in his mouth began to fade, and the legs still clamped about him, almost trembling with something akin to fear.
He stopped what he was doing, all of it, fingers out and mouth off, and rose on one elbow to look at Theo, what at this point was not doing very well. Theo's whole body screamed something that was not arousal and it looked to Greg like he was braced, trying to hide with his hands over his mouth and his eyes closed tight.
Greg leaned there as he realized what was happening, and then rolled onto his back, away from Theo, away from what he had done to him, again. That sinking feeling of dread was there; never mind his own painful erection pushing against his jeans. Lying there a moment, Greg squeezed his own eyes shut and felt the helplessness and disappointment wash over himself; the feelings were sharp and acute and in an instant, Greg felt horrible, dirty and wrong, so very wrong. His eyes began to prickle with something, burning slightly and he found himself sitting up and turning so that his head rested against Theo's upper chest.
"I'm sorry, damn I am so sorry Theo."
It came out with a strangled sort of sob, and Greg found himself crying, as silently as he could, for the first time, in front of Theo, unable to hold back the tears for their plight. Whether they were tears of frustration or tears of sorrow and regret, Greg could care less; it hurt like hell inside of his chest and his blind selfish actions had caused Theo to freak out, again. He wondered, only fleetingly, if he should be coming to visit Theo and put him through this time and time again; that thought only made Greg hurt more inside and he shoved the notion away hard in his head as he silently shook with the tears. He didn't touch him, try to comfort him or stroke Theo in any way. Greg just rested his head against the other boy as he cried.