I'll start with our stats
Me:19yo Pansexual 5'10" 175lbs cock size 3.5 inches soft and 4.5 inches hard.
My cousin Josh: 19yo Gay 6' 190 cock is 5 inches soft and 8 inches hard.
So it all started when our familes decided to take a big family vacation to the Tennessee mountains for Christmas holiday. We satyed in a nice cabin together. One night everyone decided to go out except me and my cousin Josh. We decided to stay back and hang out in the hot tub. We of course started with out swim suits on. After a little while we started to get a little bored so I asked if he wanted to play truth or dare. He said sure why not. So I started by asking him and he said dare. So I dared him to take off his swim trunks and run around outside the cabin for 30 secs. Remember this is Tennessee during winter so it was about 20°F outside with a slight snow dusting. He dropped his trunks and I saw his big dick for the 1st time and thought omg that looks nice.Even in the cold it was a good 4inches and bigger than mine hard pretty much. Next he jumped by in the hot tub and asked me. I of course said dare since he did. He dare me to take my trunks off and do a snow angel then get back in. I did it and then when I got back in the teased me about my small cock but said I had a nice ass. I told him he had a lovely looking cock and would love to see what it feels like to hold it. He said come have a touch then.
I sit next to him in the hot tub and grab his big long thick cock. It felt so nice in my hand and I start feeling it grow bigger and hard. I ask him if I can put it in my mouth he says yes so I put my head under the water and kiss his cock then start sucking it. I come back up and he saids he wants me to sit on his big cock. I start trying to sit and it so big it takes a min to loosen my hole. The tip finally slips in and I'm in bliss. I start bouncing slow and deep and it hurts so good. He then picks me up and bends me over the side of the hot tub and starts fucking me from behind. After a few minutes my tiny little cock starts throbbing and cumming. I tell him to cum deep in my ass and own me. He starts fucking me deeper and harder until I feel him go balls deep and throb in my ass and feel his warm cum fill my ass. After this we decided we would share a room for the rest of the trip so we could play around whenever.