Benjamin wondered if it was not too uncomfortable to fall asleep in this position. Grace appeared completely smashed now, deep in her dreams, and she probably didn't notice anything anymore. He delicately extracted himself from under her, freeing his dick in passing, and looked around the train car. It was a good thing that it was still empty except for them or they could have gotten in trouble. Next, he cleaned both of them until there were no visible traces of what they had done. Once he was satisfied with his work, he sat next to her once again and placed her head on his lap, in a reversal of the previous position. He caressed her hair distractedly and started to think back on what had just happened.
On one hand, it was like a dream where he was able to satisfy one of his biggest fantasies. How many times did he think about her blowing him, relieving his painfully hard cock as the doting sister that she was, until he would blast his cum in her mouth and she would drink it all, lovingly? What about him going down on her, making her go crazy with pleasure by using his tongue, his cunnilingus forcing her to orgasm multiple times? And after that, she would become addicted to the gratification only he could provide for her, opening herself for even more sexual happenings? In a way, what happened this evening was similar to the start of his fantasies about her, and he couldn't have helped being ecstatic about it.
On the other hand, he just had oral sex with his sister, his real sister, related by blood. Incest was certainly one of his kinks when watching porn, but that was fiction and there was a big difference between fiction and reality. Even though he had acted under the effect of his lust, that didn't excuse anything. He could have pushed her away if he had really wanted to, except that... He hadn't desired to do so. Yes, in the end, that was the root of the problem. He should be feeling guilty now, perhaps even disgusted with himself. However, that wasn't the case. In her drunken state, Grace had shouted that she loved him and he didn't doubt for a second that it was her true feelings. In fact, it was not just her. Benjamin was not blind and he had been able to tell that all his family members loved him. And probably, loved him more than just normal family love.
He just needed to recall his sisters blushing whenever he got in close contact with them or his mother's excessive physical contact with him, as well as her possessiveness. Adding to that was the fact that they were often seeking his approval and affection, to the point of behaving differently in front of him than in front of other people. He thought about what he did with Chloe the other day. The little imp was mostly guided by her lust but she still had very little hesitation to take advantage of the situation, even when the other side had been her brother, going as far as demanding another session at the end.
In the end, the root of the issue was that Benjamin loved them too. He thought his love for them was just the love between family members, who had grown and spent their life together. But, this might not have been the case after all, and he, of the same blood as the rest of them, might also hold the same feelings as them. As they say, blood doesn't lie, and he was the perfect example of it. Their love for him was more than love for a member of their family and he now realized that his love for them was also more than family love. Searching deep inside him, he realized that he wouldn't mind going as far as they wished to go with him.
So be it, if his family members wanted his love, then he would love them as much as they wanted, and more.
Reaching this conclusion somehow put his mind at peace and he stopped thinking about it, for now, leaving his thoughts to go in random directions while he continued to caress Grace's hair absentmindedly. Soon, they reached their station. Benjamin put his sister on his back and got off the train, thankful that he was in great physical condition since she wasn't light in any way. He slowly made his way back home and managed to reach it a couple of tens of minutes later.
Benjamin entered the house and noticed that their mother was on the living room's sofa, watching TV. She turned toward them, smiled, and greeted him.
"Welcome back, darling. How was your bowling session? Those girls didn't do anything bad to you, right? Did Grace take good care of you?"
She started to flood him with questions but then noticed what he had on his back.
"...Or I guess not. What happened to her?"
"Good evening, Mom. She drank too much and fell asleep."
"Weren't you guys bowling? What's the relation with drinking? They didn't make you drink, right?"
"Of course not. We were bowling and they suddenly started buying alcohol and drinking during our second game."
"Sigh... What hopeless girls. In front of you, no less. You really shouldn't follow your sister anymore, if that's how it ends up."
"Ahah, well, it was fun anyway, everyone was nice and treating me well, until they started drinking, at least."
"I will give your sister a piece of my mind when she wakes up. Give her to me and I will put her to bed."
"It's fine, I will do it. And don't scold her too much, the other two kind of forced her to drink."
"Then she didn't choose her friends correctly. Sigh, fine, I won't be too hard on her. Go now, you must be tired."
"Thanks, Mom. Good night."
"Good night. Sleep well, darling."
Benjamin climbed the stairs up to the third floor and entered Grace's room. Same as her little sisters, her room was a mess. Seeing all their rooms being so consistently disorderly, it seemed that the impact of a single-mother family could really be felt. He cautiously tucked her into her bed before leaving the room. He headed toward his room, entered it, and quickly changed into pajamas. The following day was still a weekday and he had to wake up early. He entered his bed and soon fell asleep.