He pushes his luck.

During the drive home Sandy tried to make sense of how she was feeling. If anyone had said she would get off on wetting her pants as her boyfriend watched only 10 minutes ago, she would have called them crazy. Now though, this had woken something in her. She longed to piss her pants again. Maybe she would let Jack get right up close, maybe film it so she could watch it later.

Jack was trying to work out how far he could push Sandy without overwhelming her. She was just sitting there, not saying anything. Still, she was drinking all that water, so maybe he could convince her to go further.

When they pulled up to Jack's house, Sandy started to feel butterflies in her stomach. Did she have the guts to take this further. She just didn't know. Stepping into the hall, Sandy pulled off her chucks and stuffed some paper towels in them to soak up the piss. Taking off her wet socks she padded into the bedroom and undressed, dropping her wet clothes into the hamper. Going over to the stack of boxes she had yet to unpack, she fished out a pastel green pyjama shorts that reached just below her ass cheeks and and pressed tightly to the curve of her vulva. Next came a soft pink tank that clung to her like a second skin. Looking in the mirror she sighed inwardly. Long dirty blonde hair and cute face didn't make up for her tiny little a cup breasts. She had been saving for years but her salary barely covered her living expenses. She kept her body in top shape to try to draw attention away from her shortage and although she got a lot of admiring looks from both men and women, she still felt inadequate. Lost in thought, Sandy didn't notice Jack until he was upon her. Grabbing her by the hand he led her into the bathroom. Recently renovated, it had a big double shower to which, Shane led Sandy. Stripping off his clothes, jack instructed Sandy to kneel in the middle of the shower. Surprised at her own willingness, Sandy rushed into the position as instructed, butterflies dancing in her tummy.

Jack delighted at the sight of his girlfriend rushing to do his bidding. He admired her tight body, the small tits that Sandy hated so much looked just fine to him. Throwing his pants aside Jack caught a glance at himself in the bathroom mirror. Tall and lean, with long black hair and tanned skin. His cock was fairly normal, circumcised and about 8 inches long, it had a slight bend to the left. Looking down he saw that Sandy looked very nervous but with an undercurrent of excitement. Smiling he asked “You need to pee again?” Sandy just nodded. “Well then you had better go.” Jack laughed down at her.

The butterflies in her tummy going crazy, Sandy relaxed the muscles holding back her bladder absolutely full of water. As she felt her pyjama shorts wetten Jacks cock poped up to rock hard in just seconds. As Jack started to stroke his dick, Sandy had a dirty little thought. Reaching down she started to rub the crotch of her shorts, feeling the piss run through her fingers.

Jack could barely believe what he was seeing. This sexy girl, frigging herself as she wets her pants. Jack started to wank harder and harder.

Sandy looked up and was surprised at the almost manic look in Jack’s eyes as he pumped his cock for all he was worth. The idea that she was the object that inspired so much desire pushed Sandy into a near orgasmic state. As her bladder started to run empty and the flow slowed to a trickle, Jack gave an enormous moan and his cock erupted with long ropes of cum.

So taken with the pornographic scene in front of him, Jack didn't even notice that he was about to cum until it was already happening.

Sandy stared up at Jack as rope after rope splatted onto her body. Normally a spitter, Sandy was so turned on she welcomed Jack's spunk. First on her leg then on her top around her tiny breasts and then finally the three last landed directly on her face. As Jack sagged backward against the wall, Sandy’s orgasm overwhelmed her. Crying out, shuddered with pleasure in one of the biggest orgasms she had ever had.