Surprise

She said: “If you let me go out first then I’ll have a surprise for you. But you have to promise me to stay in the pool.”
“Ok, I’ll stay here.” A surprise should be good. My imagination was already running wild. Not wanting to pass the opportunity I still watch her as she got out of the pool. I only got the back view but it was still a superb view. She disappeared inside the house and I swam around while waiting for her to come back. I was starting to wonder if she would come back when I saw her sprinting up the deck, steal my swimsuit and towel. She ran quickly inside my house and locked the door. That was not the kind of surprise I was thinking of. I never had a chance to do something since I was far from the stairs. She even took the time to dress herself before doing that. She was now wearing a small yellow shorts and a white camisole and of course I was still naked in the pool. I got out of the pool with a hand over my cock and went to try the door but it was lock. She shout from inside: “This is your dare. You got to get in from the front door. If you do that I will do more dare with you. And don’t hide with your hands.”
I live in a dead-end street so the circulation is pretty thin. No problem. I turn from her and let may hands fall to each side. The gate was still open from her dash and I went through. I just did a quick check then made my way to the front door. I opened the door but the chain was still on. I saw her face peek out and looked down at my cock. “Come on, let me in.”
“It was too easy, was else could you do?”
“If it’s too hard I’ll double dare you, then you’ll have to do it.”
For a moment she seemed afraid that I would do that so she thought about and said: “Ok, go back on the deck and masturbate for me.”
“If I do that you’ll let me in?”
“Yes I will, I promise.”
“Ok but I hope you get good dare for that.”
I went back to the backyard and on the deck. She was back at the patio door watching. Facing her, I grabbed my cock and I stoked it. Her eyes were on my crotch and that help getting me hard. I try going fast to end it quickly but I needed something more. Then one of her hand start rubbing her tits and the other went to her crotch. She was rubbing over her clothing but it was hot. I slowed down a bit, letting her get hotter. She soon let her hand inside her shorts and I picked up the pace again. I watched her face for sign of orgasm and when I thought she was near and pumped like crazy. I lost it a bit while I shot my load but came back in time to see her orgasm. We catch our breath then she opened the door. “Ok, I’ll call you soon so you can assist me in some dare. Thank you for the little show, I really enjoyed it.” With that she gave me a kiss on the cheek and left for her home. I jump in the pool to clean a bit then went to sleep.