Robin's expression of trust made it nearly impossible for Xavier to betray that trust by doing anything penetrative.  Not that he didn't want to, badly, but that whole trust thing was important to him.  He was very excited, too excited to remember he lesson but he hoped that he made up with enthusiasm what he lacked in technique.  Comfort wasn't foremost on his mind but he found that displays of strength could set the mood as well as anything.  Of course thoughts like that might be part of the reason his wife was threatening to leave him.  Their taste had been everything he remembered and well worth the wait.  He started light and easy but then went deeper, probing their depths from behind.<br/><br/>Their reaction seemed positive enough, if he could judge such things but he let them ride his face to their hearts content.   Their clit was swollen like a ripe fruit and Xavier savored the taste and texture of it as he licked and sucked upon it.  He was not about to ease off until they came upon his face and he would feel their climax flow over his face.