Eventually their yawns and ours signaled the evening’s end.I started to gather my things after they left until Natalia put her hand on my arm.“Sta..., Michael, for a little while, will you?”I saw hunger in her eyes and not a little mischief. I was game for whatever she had in mind. We settled on the plush chaise lounges. When the kitchen staff and the maid approached to ask Natalia if she required their services, she dismissed them for the evening. Their quarters were on the other side of the. We'll have to make time for it, but later," he finished with a smile. Gretchen and Petra weren't smiling. In fact, they didn't look happy at all."We don't know much Magic. How can we pass these tests?" Petra asked in a sad voice."We'll help you learn. There are many books on Magic at our houses and in the O'Connell Realm. The O'Connells' print many of them, plus we can draw on the library here in the Otherworld for additional books," Shannon told the troubled girls."You would do that?" Gretchen. " Tell him to fuck you harder," I said. She moaned, "Fuck me harder, brother, make me fucking cum!" "Good girl," I said. "I love you watching me," she said. "I'm gonna…. Yeah, I'm - fuck, I'm cumming…"They apparently had nailed their timing because they came at the same time. He squeezed deep into her sides and thrust completely into her. I saw all his muscles tense up as he ejaculated deep inside his sister. She, on the other hand, went completely limp. Her arms gave out and she came with her. Then we took two more pegs, rum was telling on her, she was feeling the warmth and started removing her cloths, I asked her that if she want to change then she can have my night suit, it may be big for her ,but will work. She took my Night suit and changed in the bathroom, while she was changing I peeped from the door that she removed her bra & panty while putting on the suit.She came to the room and have one more peg, her eyes were becoming red , I asked her about the dinner as it was 10 o.