John

John is currently peeking out his bedroom window watching his twin sister Alex swim laps in the pool. He can't help but touch himself as he admires his sister's body in her black bikini. He strokes his cock as he thinks about squeezing her firm as in his hands, putting his dick between her cheeks and grinding until he cums all over her back. Just as the thought is about to send him over the edge someone knocks on his door.

He quickly puts his dick back in his pants and opens the door. His mother is on the other side. "Are you all right? You look a little flushed." She asks with motherly concern.

"I'm fine. I was just...exercising a bit." He replies.

"Okay, well I'm off to work and Delilah and Liv are heading out soon for ice cream so you and Alex will be to holding down the fort for a bit. There's money on the counter for pizza and please keep your sister company, her competitive nature has made it hard for her to make friends and you're the only one who has been able to keep up with her." She kisses John on the cheek and heads out.

John waits for Delilah and Liv to leave as well before heading out to the pool. Alex is so focused on her laps that she doesn't notice her brother standing at the edge of the pool. "Hey sis." John alerts her to his presence.

Alex stops swimming and looks up at her brother who is only wearing swimming trunks. "John? How long have you been standing there?" She asks.

"Just got here." He replies. "Thought we could play a game of Marco Polo."

Alex raises an eyebrow, "Marco Polo? What are we, five?"

John shrugs, "Okay, never mind then. Just thought we could it interesting with a wager, but if you're too chicken then whatever." He begins to walk inside.

"Wait." Alex calls out. "What kind of wager?" She asks with interest.

John smirks to himself before turning back around. "I don't know, how about if I win, you give me a free massage."

"And if I win?"

"You don't have to give me a free massage?" he smirks.

Alex shakes her head, "Very funny. If I win, you do my laundry for a month. Deal?"

John nods. "Deal." He grabs his phone. "I'll set the timer for two minutes, which is how much time the seeker will have to find the other person. First person to win three times is the victor. You can seek first. You ready?"

"Ready."