Exploring the forest

After I let my hard-on deflate, I stumbled out of the hammock then made my way towards the beach, before emerging though I spotted Alice. She was still naked and currently pulling both of our clothes from the line we'd strung up. I was out of sight and guiltily watched her. She first grabbed her bikini top she draped the middle loop over her head and allowed both cups to dangle between her boobs. She brought her hands up and gave them a quick squeeze and bounced them a couple times in her palms before reaching around her back and tying the bikini in place.

'I shouldn't just be watching her like a creep, I'm just going to cover my eyes and walk out there,' I thought, but I didn't take a step and my eyes were very much still glued to my little sister. My attention snapped behind me towards the trees as I heard the sound of a loud bird call, I quickly realised Alice might turn to look and I dove to the ground. A few moments passed, and I peaked back towards Alice, and I sighed in relief seeing that she wasn't looking this way.

I got up and was about to leave when Alice bent over at the hips giving me an amazing view of her ass and pussy. My body stopped listening to me again, I couldn't move a muscle and my eyes were glued to her. Once she'd grabbed a hold of her bikini bottoms, she stepped into them and began pulling them up. I don't know if she was purposefully pulling them up slower or if time seemed to have slowed down or both but either way seeing her like this caused me to get hard. She continued to pull them up until she reached the bottom of her ass and they caught like they were maybe a size or two smaller than they should be. She tugged at them and they caused ripples on her butt then they eased into the bottoms and she continued pulling them up until the fabric was snug to her ass.

She then sashayed over to her sarong and tied that around her waist, "Robin! Are you coming or do I need to come get you?" she called without turning around.

I quickly darted back towards the hammock and pretended like I was coming from there, "I'm com- I'm on my way," I replied, I tried to hide my hard-on but Alice wasn't even looking at me, I walked over to my clothes and grabbed my shorts, I pulled them up and accidentally caught my dick causing it to let a loud slap as it hit my stomach making me freeze momentarily because Alice was right next to me, I looked over just in time to see her look away.

I yanked my shorts up forcing my cock into them and quickly put my shirt on. There was a long silence as we got ready to leave, we put on our sandals and I turned the shovel into a spear, I also grabbed the axe, we had used a thick branch and turned that into a handle so that it could be used as a separate tool. after that, we packed a couple of water bottles and some of the rations. The backpack still had the med-pack in it, so we left it in there and once we were all set we checked which direction the beach was with the compasses on our wrist bands.

We had been walking in silence for ten minutes, "Are you upset with me?" Alice asked.

I flinched at the question, "W-what? No, I just... This is all wrong and we shouldn't be-"

Alice blocked me with her arm as she stopped, "Shut up," She said in a slightly hushed tone.

"No, I mean it we are brother and-" Again she cut me off this time by shushing me.

"I think I can hear something," She said quietly while straining to hear.