Sue warped the sheet around her and walked to the room. While Sue was in the room, as Tim was folding his table, he started giving me tips on how to m...ssage her if she has problems with her lower back again. We sat on the couch while Sue got some cash from the room to pay him.Sue came out and sat to the other side of him so that Tim was between me and Sue on the couch. She was still naked except for the sheet wrapped around her. She paid him and he continued describing how to massage her.I. “Spread them back apart” I demanded. She timidly reached back and spread her cheeks again. “Either I can do this, or you can” I said as I stared down at her asshole wrapped around my knob. I shoved a little. “I will I will I will!” she quickly replied.I leaned back to watch. She began to slowly push back against my cock. Painstakingly slowly she slid another quarter of an inch into her hot ass. She was sucking in gulps of air and moaning each time she moved back. Then she moved forward, back to. And then she took a deep breath and opened her mouth, locking her lips around the cock. She stayed like that for a while, feeling silly, but it also made her tingly. Now that the aversion of putting a cock inside her mouth was gone she realized she was having sex, even if it was with her brother. And what she was doing couldn't be a bad thing because her mother did it. Her tongue licked the cock inside her mouth and Jeff moaned. She looked at him and saw that his eyes were closed. Then she. “Now come join the rest of the class. I’ll make the full announcement.”“Can you believe she’s coming back? This will be so cool!” Amy practically screamed as we walked to lunch.“I know you two like her. She really is like your friend, isn’t she, Tony?” asked Sandra.“Well, yeah. We play racquetball.”“She’s teaching me,” Melody put in. In fact, we had a session with her scheduled this afternoon. I had to admit that I was looking forward to seeing her naked on the model dais again. Of course, this.