He was uncomfortably hard as he sat there, feeling his cock throbbing, trapped in his pant leg as it was.  Every pulse along his engorged shaft a reminder that this wasn't JUST about reclaiming his wife.  Robin's affect upon him was undeniable.  The fact that she was able to read it so plainly and so confidently, might have frustrated the older man were it not for the more pressing needs of the moment.  But still, the idea of bringing this person into the home he shared with Abigail was a line that once crossed could never be undone.  It was perhaps his own old fashioned sentimentality but it was strong none the less.  He had been honest with himself and with Robin.  What he would tell Abigail, assuming he ever got the chance, well he might be neglectful but he hadn't been a liar, at least not yet.<br/><br/>He noticed a slight change in Robin, they seemed a bit more vulnerable and he couldn't deny that appealed to him on a rather primal level.  He wanted to think it was their own arousal, but it might have been simple vulnerability.  Xavier had at least 60 lbs on Robin, most of it muscle mass, not to mention him being armed and plenty of restraints available to him.  She probably wasn't completely defenseless, he might pay a price, but he could do what he wanted to with them without too much trouble.  But if they were any good at reading the eyes, they would notice Xavier was more desperate for Robin's acceptance than purely lustful.  The lust was there, no doubt, his eyes travelled along their body even as they leaned over to kiss them.<br/><br/>He moaned at her touch on his thigh, gasping audibly as she touched his bulge which flinched noticeably at the light contact through the thick material.  He was surprised at the kiss, though he smiled afterwards and looked delighted at the gesture.  For his part, he reached over and gently caressed their small right breast, he gave a soft squeeze, something he had wanted to do since he had frisked them yesterday.  He felt the hard nipple in his palm, the whole orb fitting easily in his large warm hand.<br/><br/>He nodded his head at her suggestion they could stay in the truck.  "Yea, I'm ok here if you are."  It was almost as if they were reading his mind, one less line to cross though he felt many more would be drawn and crossed before he returned Robin to the boarding school.  He shifted in his seat towards them, this time he leaned in for another kiss, deeper this time though he didn't thrust his tongue into their mouth but sucked upon their lower lip as his hand swept down to find the lower hem of their shirt.  Abigail's breasts were so large and full, Robin's by contrast were novel in their smallness, which had an attraction to Xavier even he didn't understand.  He wanted to fuck her, recline her seat and tear off her pants and claim her.  But he wasn't even fully sure they were a 'her' and he knew that would ruin all chances of reclaiming his wife and of reaching the promised fulfillment that Robin had offered.  So he kept his urges to himself, fighting them off with nearly as much passion as he was beginning to show towards his wife's new lover.