"Taste it" I barked as I yanked her head as my dick entered her mouth. "That's it baby" I hissed. "Taste us mommy. Tell daddy how good we taste". "MMM...Daddy, we taste so fucking good", Kate purred as she then proceeded to deep-throat my dick. I could feel my dick starting to swell in her throat. "I want you to ride this dick" I said. I sat her on top of my dick and slid deep inside her. "OOOHH SHIT" she cried out as she started riding me hard. I sucked on those big tits as I felt her cream. As we concluded our taboo game, Erin made a comment that left me speechless; speechless and very excited. Apparently, Erin had let her 17 year old sister Amanda in on our secret and her sister was not far from the hotel, awaiting Erin’s call; a call that would summon her to our room to join in the fun. After rinsing off in the shower, I wrapped the over-sized towel around my waist to rejoin Erin. As I turned the corner, Erin was sitting on the bed next to a girl I assumed was her sister. "Hi..." Ada Spencer mewled back. Hank just waved. Not a hearty how you doing? wave but a small perfunctory motion. Like a prom queen given over to an unexpected bout of motion sickness. "Umm... Nice night, isn't it?" Damien queried. Ada's gaze roved from Damien's round ass, to Rebecca's eyes, and then to the hard, sexy cock Rebecca was still stroking gently. Ada took hold of Hank's arm and pulled him away fiercely. "C'mon, Hank!" Ada thundered. "You've got work to do!" Hank allowed himself. I put NeedleThorn back in her spot and hopped into the shower. My usual jeans and running shoes, along with a favorite old Think Geek T-shirt that said "Obey Gravity, Its the Law!". The shirt was now a badge of honorable irony for the members of the Gravy Geeks.I jumped myself into the usual swirl of people entering and leaving the Strata, and headed for the Forbes. I was a few minutes early, and made sure I grabbed us a nice table for two, throwing my book bag on it. The bag actually did.