After a long and intense fucking, Jen and her older sister Robin lay in bed recouping. "Thanks sis, that was the best orgasm I've had in a long while." Robin said looking at Jen and then down at her semi hard horse cock on her abdomen. "Wow what a mess, we can't leave your beautiful monster like that." She rolled over and began licking Jen's juice cover cock from base to tip. Jen enjoying the sensation looked down at her sister to see her look back with a tongue full of cum. "We taste suprisingly go - " they both were startled as they heard a car door slam. "OH SHIT!" they both said quietly and scrambled to their feet. "What do we do? Mom can't see us like this!" Jen alerted. "Get dressed and clean up and I'll stall her while you do so." Robin put on her shorts to tuck her low hanging fruit, then put on pajama pants and a long shirt. "Quickly shove everything in the closet and put on fresh sheets in my bottom drawer." Robin instructed as she closed the door behind her and headed down stairs to intercept her mother as she heard the side door open and close. "Hi Mom!"
"Oh Hi my little bird, I didn't expect to see you today." Mary said a bit surprised. "Ya my plans for the evening got cancelled so I thought I come home a day early to have a longer weekend with you and Jen." "That's sweet dear, I'm glad to see you." "How was your day?" "A bit odd but it is much better now that I'm home with my girls." Mary's nose began to sense something heavy in the air. It was different, yet the same, and for a moment struggled to determine what it was exactly. Then it hit her, she smelled horse! A bit panicked at the thought of being discovered, she wanted to get up to her room quick. At the same time, Robin detected the same heavy scent and knew not only was it her but coming from her room. She knew Jen needed more time, and saw her mother become nervous and act moving quickly. Robin had to think fast to stop her mother from going upstairs, as her mother approached she opened her arms and quickly approached for embrace wrapping her arms tight around her "I've missed you mom!".
Mary put her things down and was going to go up to her room because she was to nervous at the moment to face her daughters. She saw Robin approach for a hug and she had to go with the flow to not be to out of character. They embraced each other and squeezed tight, after a couple of seconds, Mary got a big whiff of the horse scent coming from her daughter. She was immediately puzzled and unsure of what it meant. Then she felt her balls rubbing against Robin's legs. They quickly let go with both very confused faces and just stared at each other.
"What perfume did you put on?" Mary asked trying to break the tension, Robin blushed a bit and stammered. "Oh, uh it was joke by a friend earlier today. Smells terrible doesn't it?" "Well it definitely isn't something for going out." Mary tried to lighten the situation, but Robin was still fixated on what she felt on her mom's leg. "What was odd about your day?" "Oh I'd rather not talk about it at the moment." "What are you hiding, I felt something in your pants!" Robin retorted because she was growing anxious of the situation.
Jen finished putting the fresh sheets on Robin's bed and quickly threw the blankets on it. Paying no mind of her new horse genitals, she put some pajamas on and went downstairs. Turning the corner she greeted her mom happily in the hall. "Hi Mommy!". Robin and Mary turned to look at Jen and noticed the giant bulge in her bottoms as she approached. Robin saw her sister's bulge but couldn't help but be turned on due to recent events and stricken with a bit of panic. Then she felt her own groin begin to swell. Mary on the other hand was even more shocked to see her youngest have a massive bulge in her pants rocking back and forth as she approached. Jen smiled as she noticed her sister's pants tenting but then stopped cold when she noticed her mom. Seeing her sister stop Robin turned back to her mom and instantly forgot about her growing bulge as she noticed Mary's pants tenting. All had surprised looks and Mary knew the girl's were seeing what she felt and there was no delying it now. "Girls we need to talk."