Part 2 - Alice and Jeanine
The next morning, I was jolted awake by the splash of someone diving from the top deck into the lake. Checking my watch, I realized I'd been asleep for almost 11 hours! I tried lying in even longer but that wasn't going to happen. Joey was not in his berth and the rest of the boat was silent.
I scratched my bedhead as I wandered around the interior, but found no-one. Surely somebody was around since I heard the splash that woke me up. But, on the aft deck I could see that there was nobody still in the water. So I made my way up the ladder leading to the top deck but I stopped short. I couldn't believe my eyes. There was my sister Alice, lying face down, tanning, wearing only a bright white thong for bottoms. That was quite the bathing suit cousin Jeanine had loaned her. I didn't move for a long time, drinking in the very sexy view. Her legs were slightly apart and I was looking right up at heaven's camel toe.
"Are you going to stand there gawking, or are you going to put some tanning oil on my back?"
Clearly, I was busted. "Where is everybody?"
"They went on a hike."
She didn't get up, but reached back to put the container of tanning oil on her lower back.
"Sure, I can do that, Alice." Being the good brother I was, after all. Starting on her right foot, I worked my way up one of her slim legs, I stared the whole time at her fleshy, bare bottom. 'Accidentally', I bumped the back of my hand against her pussy as I applied the oil to her amazing butt. She jumped a bit but didn't say a word. I then started on her left foot, again working my way up her shins and thighs. This time, I was not so subtle and reached under the hem, spreading the oil as close as I could get without actually touching the promised land. Again, she gave no reaction. It was then that her good brother became her bad brother. I slipped my hand under the dental floss until I could feel her ass hole against my fingertips. I didn't know if she was feeling the tension, but I was absolutely vibrating.
Scolding myself for perving over my sister, I can't say I felt truly guilty. After all, she wasn't exactly my sister, but technically my stepsister. We were both adopted. In fact, nobody onboard had any other person's DNA. Joey was closest but was actually my deceased Uncle Bob's son from his first marriage. Nevertheless, the guilt was enough for me to stop reaching inside Alice's bathing suit.
Instead, I took a different tack. Stepping over her, I set my knees on the deck, straddling her thighs. I spread tanning oil from her lower back, with long strokes all the way up to her neck. The bathing suit's top she had borrowed from Jeanine was just held by a bow, and Alice casually reached back and untied it so I could work unimpeded all the way from her bum to her neckline. I worked slowly, unwilling to be finished. I slid up her oily legs until I was straddling her bum.
To say it was making me horny would be understating the situation. I knew I shouldn't, but as I worked the oil up her back, I slid my rock hard cock into the furrow of her butt crack. With each pass, I pressed it harder and harder before admonishing myself for doing such a thing to my sister.
Pushing myself up and away from her before I came, I sadly declared her back done. Without another word, she rolled over, pulling the bottom of her swimsuit bra back down in place, but did not retie it. As she flipped I caught a glimpse of one of her liver covered nipples. Her mirrored sunglasses made it impossible to see where her eyes were looking, but an almost imperceptible dropping of her chin suggested she was focused on my cock. It wasn't sticking out of a leg hole like the previous night, but was definitely well defined, standing tall within my shorts.
She nodded slightly, so I took that as a signal and carried on. Squirting a large amount of coconut tanning oil into my palms, I straddled her again but began by working in the opposite direction, from her neck down. When I got to her breasts, I thought, 'Well, in for a penny, in for a pound.' I didn't bother with squirting more oil into my hands, and instead squirted it directly onto her bathing suit top. This time, Alice visibly shivered but kept her hands at her side. The oil made her white top instantly see-through revealing rock hard nipples. Her breathing became ragged as her tits heaved up and down with each stroke, but she still didn't say a word.
'To hell with it', I thought. Moved up again, I straddled her waist. working my way from just inside the the waistband of her swim suit, all the way up to her neck. On the second stroke, I pushed her top completely out of the way. Her rigid nipples and soft, white breast flesh glistened in the Summer sun. Each time I squeezed both sides, I leaned forward, pressing my cock hard against her covered clit, up and back, up and back. She shuddered, literally grunting and whimpering, heaving her chest as I pinched her nipples. Then, I stopped. Completely. She mewled in protest. Now I had her. She wanted more.
Teasing her, I massaged between her toes ever so slowly. Alice was having none of it, kicking my hands away, signalling it was time to move on. Working my way up, I nudged her thighs. In response, she spread her legs wide, her intentions clear. What a sight! I determined that the sight could be improved. Squirting a great amount of oil directly onto her crotch revealed a thick, dark, hairy pussy staring back at me. Other than for her bikini line, she was completely unshaven. It was the sexiest thing I'd ever seen. She was definitely all woman now. I settled in. Reaching below her pantie line, I raked my fingers through her pubic hair, rubbing oil directly onto her clit. I pressed it hard and often before sinking my middle two fingers deep into my sister's pussy. There was no resistance at all, physical or otherwise.
Remembering a technique learned while watching porn, I curled two fingers inside her until I felt the spongy spot on her upper wall. Without mercy, I plunged in and out as fast as I could, adding my other hand to rub her clit at the same rhythm. It didn't take long. Alice erupted and convulsed off the deck, squirting her juices into the bottoms of her borrowed swimsuit.
I was still a virgin, and a very, very horny one now. Tearing the bottoms of her suit completely off, I tossed them aside onto the deck with a splat. Alice reache3d behind her neck to untie the rest of the bra portion of her bathing suit. My little sister was now completely naked before me and my oh my, how she had grown. Staring down at her womanhood, I grinned lasciviously at my amazing sister. Her mirrored sunglasses hid where she was looking but being only 18 herself, I understood that she was just as horny as I. Moving a hand from her clit to her bare nipples, I kept her at my mercy but had no mercy to give. I groped her big, young breasts, musing they were as stiff as memory foam. It was the first time I'd held a full breast in my own hand.
Alice was no longer whimpering. She was screaming. Within ten seconds, I had her squirting her come all over the deck. I kept doing it and she kept coming. I found it quite amazing that a girl could shoot that far.
From behind me, I heard, "I'll have what she's having." I was stunned to see Jeanine walking up behind us, dangling her own bathing suit in her hands, completely naked. There were the breasts from his dreams. Unlike Alice, she was completely shaven. She flopped face down on the deck, ordering, "get busy Tommy. If that's okay with you, Alice."
