A secret insertion begins during a family get-together. The mucous membranes of mother and son intertwine through the skirt. "Not now... I'll make a noise." The mother, turned on by the lewd smell floating through the thin fabric, secretly orgasms repeatedly. Their bodies begin to ache in the edge of the situation, and the two jump into an even more dangerous situation. "If we do it slowly, no one will find out... it's okay even if it's near daddy." They can't stop their fearless hidden sex, hiding from daddy!