"Please, Nick," Susan begs, "please touch my nipples." She's rocking from side to side, trying to brush her n*****s against my hands.
"I need to make sure the sides are clean," I smile as I lift her large t**s and continue to run my soapy hands all around them.
"They're clean... I promise," she laughs, thrusting her chest out to try and drive her n*****s into my palms. I tease her smooth flesh for a few more minutes and then lightly brush my fingers across her hard n*****s.
"Oooooooo! Yeah!" Susan moans. I tweak her n*****s between my finger and thumb, twisting and stretching them as she arches towards me. My sister and I have taken plenty of showers together and we're usually f*****g by this time. My c**k is as hard as a rock but I have this perverse desire to tease her a while longer.
