The purr was soon lost in tiny gasps as Lisle felt both holes stretched and filled.  Muscles squeezed at the invaders, and nerves went wild with friction.  She felt as though each thrust was cleaving her wider until she was ready to split with the very next blow.<br/><br/>The touch of her tongue to Gerlinde's felt searing hot to Lisle, and despite her best efforts, she found herself responding even more to this strange situation.  Her clitoris felt like it was throbbing, and her breasts fairly glowed with the heat ground into them by Gerlinde's.<br/><br/>When the moan finally came, it surprised her, probably as much as it would please Gerlinde.<br/><br/><em>Wait!  That wasn't - was it?</em>