Chapter 3700 Brother Helps Sister Recover(Taboo Sex):>Ep4

After rewetting her hair he has Tia stand there while he lathers up her hair but he can't reach the top and the bottom. So he has her lean forward with his back against one side while her butt is pressed to the other. Not thinking about it, Tias' view narrows to a very close look at Tommys' cock. Without thinking her hand moves like it has a mind of its own and she touches the turgid member, stroking it lightly. Tommy gasps when she touches it but lets out the breath to just keep washing. As soon as she sees what she has done Tia snatches her hand back blushing deeply under the cascading hair and soap. 'What is happening here. Why am I acting like this? He's my baby brother. Well, maybe not a 'baby' any more.' She thinks, still looking down, then closes her eyes. Soon after Tommy tells her she can get back up and they can rinse it out. But to do that she needs to lean back so the water flows over her hair not her back. There is only one problem for her to get in the right position. They have to be front to front with her bent back into the water. Since she can't yet stand well yet Tommy needs to keep her from falling over. Which also puts their genitals in immediate proximity.