One day when Tom was leaving for lunch from his substitute teaching job at a grade school, he spotted a Mexican mother with two of her children in the parking lot. She wasn't beautiful, just plain-looking, but she was hugely pregnant!
Now Tom was not a dawg by nature or even a guy who got off on every pregnant woman he saw, but this one was different. So different that he found himself staring at her lustfully as she loaded her kids into her car.
Her belly was perfectly round and enormous, but somehow she was very casual about it. She moved around easily and wore only jeans and a tight, stretchy shirt. But the clothes showed her massive mound off with such plainness that it seemed almost as if she were naked.
He watched her closely until she turned and he got to see her belly in profile. It projected out with such firmness that he thought it was the most sexual thing he had ever seen! Of course the woman seemed to sense his stares and she turned her head his way several times, but not in a threatened way. The exercise ball attached to her body was no big deal to her, obviously.
He imagined groping it as he sat there leering, trying to look like he was busy in his glove box. Yes, he was sure he could feel it now! Tight to the touch! Even hard! He wondered if she knew how sexy she looked? Maybe she did. Either way, he wanted to fuck her and that primitive urge seemed to be getting sent out to her he guessed.
A few weeks later he worked again at that school and saw her walking (not waddling) out of the school door as he was heading in. She smiled at him, perhaps assuming he was a regular teacher there. But there was a quality to her expression that day that told him she was very much in need of sexual attention.