Penny was hanging out at her friend Mark’s house with a few friends. Mark and his roommates always had a few beers in the fridge and could always come up with ideas for things to do when they all decided to skip classes. This week, however, the ideas were slim, it could be due to the fact that there were only three of them there instead of the usual five but as they sat at the back of the yard they tried to come up with an idea of something to do. As Penny took the last drink from her bottle of soda she dared Mark to piss right in to the bottle without touching the lip of it. He took the bottle and managed to do it just find but then came Penny’s turn.

Mark dared Penny to whip down her panties right there and just start pissing while they watched. She thought it was just fun and games and whipping down her panties she started to let the pee flow free. But as she let the piss trickle out of her slit she kept her eye on Mark and slowly but surely his dick started to get so hard that she couldn’t ignore it!

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