Again she is sucking harder. I tell her that if she is really good then I will reward her with a surprise on the Sunday morning before her boyfriend c...omes to collect her.I pull my cock out, she is breathing heavy. She then says that she has never done anal before, but she will do it. I ask her to strip for me as I lie down on the bed, she performs a sexy striptease for me, never taking her eyes off me, I record every bit of it on my phone, then she slides her naked body up the bed and starts to. I awkwardly rubbed my thumb over her nipple. I must have done something right because I got a long ‘mmmm’ from her. My confidence rose again and I lifted her shirt and for the first time I saw a girls breast. I leaned my head forward and let the tip of my tongue over a nipple and when she didn’t stop me I took it in my mouth and lightly sucked on it. Kimmy’s hand began to stroke my cock. I was in heaven. And then mom’s voice from upstairs; “what are you kids doing down there? It’s time for. You think better of pushing your luck any further and resolve to head for the surface. You silently thank yourself as you carefully retrace your steps to find the first of the glow sticks you've laid out for the return trip. Idly checking your oxygen meter once more to find it has dropped yet again. -14%- It wouldn't do to get lost down here for any length of time.Eventually, you arrive at one of your primary checkpoints; its a steep climb, but you're well prepared for this expedition.. So that was how most of our first day passed. We spent time in our little courtyard, talking, enjoying being pampered, studying, and, well, waiting. Ashryn joined us after her bath, but after the noon bell rang, the rest of us took our own baths and we all got dressed in our finest.Ashryn and Calliope, both were wearing their chokers. Calliope was acting cool about it, but as usual Ashryn wasn’t having any of that. She immediately bounced over to hug Calliope’s arm, exclaiming, “Oh, Calli, you.