Hearing Robin's moan was just the sort of feedback Xavier needed to encourage him.  He was so nervous, for a number of reasons, but the most on his mind was his ability to satisfy this young person who has come to dominate his thoughts.  The sudden need to be more than just a provider to his wife made him realize he was more than a bit rusty in the sexiness department.  But that moan at least told him he was doing something right.  Their probing tongue stirred much more in him than his tongue which happily greeted hers as he fumbled with their shirt.  He was startled by the sudden drop back in the seat, his shifted weight bringing most of his bulk down on them.  A moment of concern was put to rest by their giggle which brought a smile to his face and he gave their breast a firm squeeze in response.<br/><br/>He was a bit nervous about their aggressiveness as soon his shirt was open and their hands caressed his chest directly, wasting no time and now serious again.  Their hands seemed earnest in exploring his body, his insecurity at appearing old and gross to them being put to rest as more of him was exposed and felt.  It was his turn to moan as they sucked on his nipple, the sensation sent an electric jolt from his chest straight to his throbbing cock.  He moved to straddle them in their seat, his pectoral muscles flexing beneath his nipples as he supported his weight with his right hand as his left continued to fondle their breasts.<br/><br/>"Oh damn."  He panted in barely more than a whisper as she opened his pants and plunged their hand in to cradle his throbbing erection.  Their hand smeared with his precum which had soaked into his boxer briefs and continued to ooze from his tip.  Their hand felt good on his cock and he thrust slightly as if to encourage them to stroke him.  Instead they cupped and squeezed his balls which felt good as well.  His balls were heavy and pulled up tight as if ready to cum at any time, which wasn't far off as far as he was concerned.  He was breathing hard as they drove him nearly mad with lust with their mouth and hands.  He wanted them bad and looked like he could make that happen at any moment, toying with a man like Xavier could be a dangerous thing.  There was little to stop him from taking what he wanted.<br/><br/>But then he heard their voice, a demand of their own.  He pulled his hand from their breast even as they had unbuttoned their shirt to expose both perky orbs to his gaze.  He didn't acknowledge anything just yet, just watched as they undid their pants as well and then undid and lowered their jeans.  They were wearing boys underwear, not that different from his own only black.  He saw the bulge and looked up at them eye to eye but remained silent.  He didn't realize it was just a rolled up sock at first and made him wonder just what 'going down' was going to mean with them.  He leaned down and sucked on both their nipples, one at a time, still not acknowledging the demand.  He tugged roughly at the right nipple as he pulled away.  "Ok."  He finally said and reached down to find the button that wold move the seat back and kept it going until it stopped.  It created just enough room for him to kneel on the floor before them.<br/><br/>His balls hurt as he got into position, a bit cramped in the floor space of his truck, the dashboard forcing him to hunch over so that his face was already close to their sock bulge.  He reached to their hips, hooked the elastic with his fingers and pulled down.  He held his breath and when the sock was exposed seemed to breath a big sigh of relief.  He tugged the boxer briefs down rapidly now.  Claiming the sock roll in one hand he held it to his face and inhaled her scent of arousal.  He opened his mouth and stuck it part way in, his lips wrapping around it playfully.  He took it in his hand again and threw it at them, bouncing off their face as he hit them on the nose with it.  He pulled the jeans and briefs down over the knees and towards the ankles, enough to let them spread their legs wide enough for him to do the deed.<br/><br/>He didn't hesitate, but he was a bit rough, especially with his afternoon whiskers.  He was perhaps trying a bit too hard, his tongue attacking their clit, rubbing it roughly as he buried his face into their crotch.  He sucked on their clit then probed his tongue down to find their opening.  He wasn't gentle or soft but seemed intent on forcing pleasure into them through sheer force of will.