Next it was Katherine's turn. To Alan's simultaneous delight and dismay, she seemed extremely eager for him to get started on her. She looked ready to burst.
All throughout the lotion application on his mother, Katherine had fidgeted about, kicking her legs restlessly. Sometimes she even ran her hands over the parts of her body which mirrored Alan's caresses on their mother as she fantasized about her brother touching her that same way, and more. She was already in an orgasmic nirvana before he even touched her for real.
Alan continued to be amazed at how dramatically she'd changed from the girl he thought he knew. That girl would never have considered going topless, much less bottomless, and the idea of a man then applying lotion to her naked skin probably would have caused her to faint with dismay. Yet here she was, her nonverbal communication practically begging him to run his hands all over her. Verbally, she remained silent.
He didn't realize how much her earlier ways had been a pose, designed to ward off unwanted attention and also to keep her mother happy. His sister may have looked the part of a prude, but she didn't hold those values in the same way that her mother did. On some level she'd been saving herself for her brother, even when she thought that there was at most a slim chance that anything would ever happen between them.
He wondered to himself, Does she think this is all some kind of game, like tickling when we were younger? This is so much more serious than that. Does she just want to help me do my thing, or does she want more? It's tempting, but I'm not going to do anything a brother shouldn't do when applying lotion to his sister. In fact, because she may be willing to go further, I'm going to have to be even more careful, for both of us. This is no time to get something going, not with Mom sitting a few feet away!
With his mother, Alan had sat behind her to apply the suntan lotion and started with her back. But now with Katherine he sat next to the lounge chair and started with her feet. He wanted to get used to touching her before getting to the "good stuff."
He discovered that he really enjoyed the feel of her skin, which was covered with a youthful peachy fuzz. Also, even though Susan was extremely fit from working out daily with Suzanne, Katherine was even firmer and fitter (thanks more to youth than effort). She had a tight and hard but not overly muscular body. He found himself running his hands all over her, just for the feel.
She didn't mind, even though it didn't have much to do with applying lotion or even massaging. Just like Susan, she started purring and moaning lightly.
He also took the time to appreciate her lovely aroma. With Susan he'd been so nervous that he'd barely noticed her smell at all, at least not until the scent of her wet sex became obvious.
Soon after he started applying the lotion, Katherine spread her legs a bit, allowing him to stare at her labia as he worked his way up her legs. As he moved his hands higher and higher up her thighs, she didn't say a word or make any noise to discourage him.
He wondered just how far he could probe. He found his excitement rising even higher as he contemplated touching her pussy. Dang! What if I just fingerfuck her right here, with Mom and Aunt Suzy lying right there? Would Sis want me to do that? She totally would, I can tell. Her groans are getting so loud and erotic as I near her pussy that I'm gonna cum any minute for sure.
But in the end he backed off, mostly because it was just too risky. Not only was Susan bound to notice, but Katherine might slap him for being too presumptuous. He resolved not to do anything a brother or a professional masseuse wouldn't normally do.
After he finished 'applying lotion' to most of Katherine's body, Suzanne made another "helpful" suggestion. "Sweetie, it looks like you have magic hands. I can hardly wait until you come over here. You should straddle her legs for easier access." Her words had deliberate double meaning. She even had a long pause after "come," implying that she meant "cum, over here."
He sat on top of his sister's legs to do her ass and back. It occurred to him that his erection, still frantically trying to fight its way through the fabric of his swimsuit, was now mere inches from his sister's naked slit. That thought didn't help him cool off, especially since her legs were spread wider than Susan's, giving him a better view of the lower part of her pussy.
It also didn't help that, while his mother had limited herself to moaning, Katherine started to murmur some words that only he could hear. She said things like, "Mmmm! ... Good! ... That feels so good! Mmmm... Do me there. Yes! Do me there! ... More." He at least felt relieved that he was wearing conservative bathing trunks that were really more like regular shorts, instead of those tiny thongs that European men wore. He was embarrassed enough as it was, and could do little to relieve his raging boner.
He gave her ass a very thorough working over, but again avoided all but the fleshy cheeks. It wasn't that he didn't want to explore her ass crack, but she was getting so into it and getting so vocal that he worried about what she might say or do. He imagined Susan rousing herself from her drowsy slumber as Katherine shouted something like, "Oh yeah! Plunge your fingers into my hot box! Go for it!"
He also felt self-conscious because he knew Suzanne was very much awake and carefully watching every move he made from behind her dark sunglasses. She wasn't saying anything, neither approving nor disapproving, which made him feel a bit nervous.
He was getting close to cumming, causing him to try and pace himself. He tried hard not to look at his sister's pussy so much, but couldn't help staring at it sometimes.
But then impulsively, just as he was about to finish with her butt, he grabbed her ass cheeks with his hands and dug his fingers into them as far as he could.
She responded by opening her legs even wider than before.
He found himself staring at her asshole and much of her pussy. But as he moved his hands in towards her ass crack, she cried out, "Oh, yes! Like that!"
He looked over to Susan in fright to see if that had woken her, just as he had been fearing would happen. But she was either still asleep or in a happy daze. Spooked by the close call, he pulled his fingers away from her flesh.
"Noooo..." his sister moaned petulantly.
Alan knew he should stop. Katherine's voice was getting too loud, too obviously sexual. It was too dangerous all around. But he was so aroused that he kept going. He planted his fingers back into her ass cheeks and started probing her ass crack with a stray finger or two.
"More like that!" she said loudly. "More in the butt! So good!"
He started working his fingers like a baker working raw dough.
"Yes!" she cried out. "Like that, Big Brother! Mmmm, yeah! Deeper in the butt!"
Alan looked over at Suzanne and saw her giggling behind her sunglasses. He didn't realize it from her hard-to-read expression, but she was amused at his distress at being torn between wanting to go further and knowing that he should stop.
He had a sudden attack of guilt, mostly brought on by Katherine's use of the word "brother." I AM her brother. Her older brother. What am I doing? I'm taking advantage of her. She probably doesn't even know what she wants, and I'm practically molesting her. She must be confused by all this, this "help him do his thing" and "provide visual stimulation" talk. He got up wordlessly and backed away, almost as if in horror over what he'd considered doing.
He'd completely misread her. She griped in a pouty voice as she felt his body lift, "Is that all?" Seeing that he was really finished, she turned her body so that she was lying more on her side than her front and said, "Thanks, Bro. I really enjoyed that." She was flashing him with a full view of her pussy and tits as seductively as she could, running her hands over the front of her voluptuous body as if she were still tingling all over from his touch.
Alan smiled weakly and gulped. Dang! But she IS still my sister! Shouldn't I be trying to stop things? God, I don't know anything anymore. I just know I have to cum so bad that I wanna fall to my knees and cry!
He was deeply conflicted. The very taboo of their touching intensified his erotic urges. His sister's moans and cries, her willing, open legs, the feel of her clenching ass cheeks, the thought of her grabbing his erection in the water earlier - it was all too much for him to take. Dammit, fuck it! Maybe I should just throw all caution to the wind, pull out my dick, and fuck Sis right here! Fuck it! I'm so close to just losing my mind! If only Mom and Aunt Suzy weren't here, I'd do it!
With that thought, he was reminded that he still had to do Suzanne.
He looked over at her. Her legs were closed with one over the other, but her big pale tits were exposed for him to see. That made him all the more excited, so much so that he was ready to all but attack her. If not her, then somebody, anybody. I can't take it anymore! I have to cum or die!
He spoke up. "Um, Aunt Suzy? I was just thinking. It seems like we're running low on wine. Why don't I go inside and get some drinks? And some snacks too?"
She knew what he really wanted to do: go inside and masturbate. Taking off her high heels and sunglasses, she stood up in all her naked glory. "Oh no you don't! I know what you're planning on doing in there. Don't worry, though. Trust your Aunt Suzy." She started forward.
He thought she was coming at him, but she walked right past him.
RECENTLY UPDATES
