What!? I never heard of this!!! These girls take on a mysterious project in the hopes of winning a reward! It's called the Swimsuit Intercrural Sex Challenge! Struggling with the unfamiliar intercrural sex, they gradually begin to feel good, and then it's time for a slippery insertion! Unable to resist the pleasure, these 20 girls shake their hips with all their might. Will they be able to get the luxurious reward (creampie) ?!