Camping trip pt3

I woke up before evryone eles did. I thought I would take a walk down the to the lake. I went out the front door making my way around the side of the cabin. I walking past my sisters room I seen her shade was up again. I stopped and looked in. Lucy has on a tshirt and white panties. She is laying on her side,Her panties are so tight fit I can make out the outline of her pussy. I feel myself starting to get hard. I look across the room to where sis's bed is. She is laying there her eyes are open and she is looking at me. I think damn it she caught me again. She startsd to pullo her shirt up she doesn't have any panties on. I see her move her hand down rubbing her pussy. Im thinking my sister is turning me on I know she shouldnt be. Then she gets up and walks over to Lucy's bed and gets in. Lucy starts waking up she rolls over sitting up ske pulls her shirt down. I think its time for me to leave before lLucy see me. I head on toward the lake thinking about how bad I want my sister I've never had this feeling before it feels strange to me. I get down to lake and sit down to try to figure out my feelings. I get up and dive into the lake hoping the cool water would tamper down my hard on. I hear my sister and Lucy coming up the trail towards the lake. They show up on the beach and yell at me come on mom and dad want to go to park and walk it and see what all is there. I swim over and get out we walk back to the cabin My sister and Lucy walking in front of me and I can't stop looking at their little asses shaking back and forth. My eyes keep going to my sister ass. The tought keeps going through my mind am I really going to play with my sister? When we get back non and dad are ready to go. I get in the one side and My sister and Lucy get in the other side. My sister gets in lean in she slides next to me. She turns and points out the window making Lucy turn and look out the window. Thats when she rub her hand across my crotch. Grabbing her hand I move it and say stop it. After a long day hiking and looking around we head back to the cabin. Mom and dad say that they are tired and are going to bed. We decide to play truth or dare. I started I asked Lucy have you kissed a boy? She said no but she want too. She asked my sister have you kissed a boy she says she has. Then It wa my sisters turn she asked me if I want to play with Lucy. I turned red and stumbled through my answer I said no. My turn I ask Lucy have you ever touch another girls tits? She looks over at sis she said no. Lucy asked sis have you ever touched a boy. Looking at me she said yes. Lucy said who? I said one question at a time. Sis ask me which one? I said Im not afriad give me a dare. She said take your pants off for the rest of the game. I stood up and took my shorts of and sat back down I said well Lucy which for you? She said I guess a dare. I said great strip down to your panties. She looked at me and said everything. I said no so she stood up and slowly pulled her shirt off. She had a nice pair of white panties on. She looked over at sis and said your turn strip to your panties. She said ok bro stroke yourself 3 times. I feel reuncomfortable but I do it. I say Lucy kiss my sister She leans over and they gave her a little kiss. I say, no longer. She leans over and gives her a longer one. My sister looks over at lucy and said take your shirt off. Lucy said I dont have a bra on. My sister said oh well take it off. Lucy takes it off now she just sitting in her panties. I tell sis to take her shirt off and join Lucy in your panties. I say to my sister touch Lucy's tits. She does it. Lucy says said its my turn . Looking at my sister she says kiss your brother so she leans over and starts kissing me. I was expecting a little peck on the cheek but she kiss me full on the lips I think she slipped her tongue in my mouth. Lucy said to my sister touch your brother dick. She egaerly reches over and touches the head of my dick. My sister said now Lets make it interesting Lucy Take my brothers dick in your mouth. She said no Im not going to do that. I think Im going to bed she gets up and picks up her clothes and go to her room. Now its me and my sister sitting there. I say what is going on why are you doing this. She said Ive been feeling things that I don't know hat to do. She sitting wit her legs open and I can see that she has a wet spot forming in her panties. I said why do you have that spot for. She said Im not sure but its been happing a lot lately. She said if you let me play with your dick Ill let you touch my pussy. I said Im not sure if I should touch you you are my little sister. She said Im grown up enough to make you cum earlier. She stands up and walks in my room so I follow her. She stops and turns around smiles and kneels down. I walk over she pulls my underwear down taking my dick in her hand. Looks up at me and says I change my mind stands up and walks out leaving me there with a hard on again.