Fishing trip

Here it is Saturday, finally time for a little rest and relaxation. One way i like to relax is by going fishing. I get all of my gear together and begin to load the boat. My mother in law notices and asks me if she can join me. I say sure i don't mind, always nice to have someone to talk to. She gets dressed and gets her stuff together too. When i go fishing i usually just wear swim trunks and no shirt. I enjoy the sun on my bare skin. My wife actually just bought me a new pair of swim trunks and they're very comfortable so that and only that is what im wearing today. My mother in law is wearing some Capri pants and a tank top and her wide brim garden hat with sunglasses. We get all of the gear loaded up and head out towards the fishing hole. Ive got a very secluded pond that i like to go to. Not very many people know about it. Its a large pond, big enough for my bass boat. When we arrive, i back the boat in the water and crank up the motor. I notice the motor is a little slow to start, but eventually it cranks up and we set out across the pond. Right about the time we get to the middle of the pond, the motor dies and i start to smell gas. I tell my mother in law not to worry, I'll fix it. As i look back at the motor, i noticed a fuel line has come loose and the only way I can fix it is to get in the water. Good thing im wearing my swim trunks, i say to my mother in law, she laughs and says, "I guess it is. I imagine if you were wearing regular clothes, you would have to strip off naked to get in this filthy water". Yes ma'am i guess i would. Glad i don't have to do that. I can't imagine having to be naked in front of my mother in law. She says " aww it wouldn't be that bad, not for me anyway." We both share a laugh and then i jump in the water and begin the repair. It doesn't take long to fix it, but i soon realize i have another problem. I notice a new found feeling of freedom and i thought i felt something brush against my butt. I reach back and notice that it is a bare butt! What the fuck? Where are my shorts i think to myself. I am bare assed butt naked. My penis is out and floating around in front of me, my balls are just hanging there in the water. The only thing between my naked body and my mother in law is a little bit of water. I didn't know it, but apparently my wife had a prank planned on me for a later date, and bought me some dissolving swim trunks. I say to my mother in law "i got got the motor fixed, but now I have another problem. " she says "what's wrong sweetie?" I say "remember what we were just laughing about a second ago?" She says "are you talking about being completely naked in front of me?" I say " yes ma'am. Thats my new problem. Im butt ass naked and I don't know how it happened. " it takes a second for her to realize what happened, but apparently she was aware of the dissolving swim trunks. Once she connects the dots she laughs under her breath to herself. She didn't realize i was wearing those trunks today. She says to me " i know its unfortunate sweetheart, but you can't stay in the water all day. You might as well come to terms with the fact that I'm going to see you naked. Im going to see everything, your butt crack, cheeks, your balls and your penis now get your bare behind back in the boat" i hate it, but she is right. I throw my leg over the side of the boat and roll back in. She doesn't bother looking away. She sees everything flopping around as roll back in. I stand up, and turn around, giving her the full 360 degree view. Might as well get it over with. She laughs and says "nice buns, but the water must be a little cold" when she said that i immediately cover my penis with my hands. I don't know why. Its just instinct. I say " we might as well head back. Sorry we didn't get any fishing in. " she says " nonsense, I've already seen you bare balls naked, we might as well fish for a little while." Now im stuck. Here i am spending the day with my mother in law while I'm bare assed naked. It then hits me, I'm going to have to load the boat and drive home naked too. I hope there won't be any company over when I get home.