DOA: beach volleyball

You notice a door with a palm tree on the front of it, with the letters DOA in purple written on it. Being a gamer, you can easily figure out where this will lead to, already getting a hard about thinking about all the busty girls, in nothing but bikini's and other revealing swimwear.

With little delay, you open up the door, instantly feeling a blast of hot tropical air, closing your eyes as the aura escaping from the room, engulfing your entire body, as you hear the crashing of waves against the beach, smelling the light scent of the ocean water, and hearing female voices close by.

Before you know it, a volleyball finds it place firmly against your crotch, taking you by surprise as you can do nothing but fall over, groaning in pain, hearing an almost familiar voice, as you look up, the pain fading away quickly.

"Oops, sorry about that.", the voice belonged to the darkly skinned Lisa, wearing the venus bikini, resting a hand against her chest as she smiled down at you. You look over to the right side of Lisa, as her partner also sported a Venus outfit, the white haired beauty, Christie, and on the opposite side of the court, the two busty blondes, Tina and Helena.

To your right was the pool, as you noticed Kasumi was the only one not wearing the venus bikini, instead sporting the jeweled gaia bikini, and close by, feeding her strawberries, was the purple haired Ayane. Lei Fang was swimming in the pool, wearing a plain yellow bikini, minding her own business, not even taking a single glance over to you.

You're still in disbelief that it actually worked, but the reality begun to set in as Lisa helped you up to your feet, dusting off your shorts, her hand brushed firmly against your still hard erection, as you think you noticed a grin on her lips.

Now that you're here, where do you start?