Little Sister's Amazing Underboob

e first half mile or so, it wasn’t hard to walk in silence. I was content reliving my first time having sex with my sister. I pondered things like: I put my dick in, then pulled it out, then put it back in again. Did that mean I had sex with Tanya twice, or did it not count because I had only cum the one time? However, after about 10 minutes on the trail, I was getting horny again, and I wanted nothing more than to touch, kiss, and even fuck Tanya again. And that was even with Tanya putting her sports bra back on and throwing the tiny crop top back into her backpack. I could understand why she was freaking out, but all I wanted to do was fool around with her some more. Now that I knew what magnificent tits were hidden under the tight sports bra, Tanya just looked different to me, sexier even when not showing off. However, I didn’t want to make my sister uncomfortable by talking about things she didn’t want to talk about, so we walked without saying anything to each other. Still, the rest of the trip downhill became filled with uncomfortable silence. It made for a long three miles, and even though gravity was working with us, we didn’t make nearly the time we had heading up the trail. We must have been getting close to the point where our trail rejoined the main one back to camp because I noticed a fragment of conversation on the wind. It was then that Tanya surprised me, “Turn around.”

“What?”

“Turn around; go back up the trail.”

“Why?” Tanya didn’t answer directly. Instead, she stepped close to me, grabbing my crotch with one hand, “Turn around and go back up the trail.” My cock hardened pretty quickly in my shorts, and I just said, “Oh!” and started walking. I didn’t say anything immediately but soon asked, “So what changed your mind?”