Camping With Big Tits Stepmom

You are on a camping trip with your stepmom. Rain storm got all her clothes wet and you are the only smart one with dry stuff. She wants to share your blanket, but there is a catch, she has to take off all her wet clothes. For some reason you get a hard on just thinking about that and she notices it. Now what? Well she has some ideas how to get rid of your hard on, actually many ideas...