I arranged her legs to give me some freedom to move. With her rock hard nipples brushing my hairy chest, she had her second orgasm, screaming into my ...mouth.. I fucked upwards hard, slapping her pelvis with mine as she drowned me again.. Yess!! Fu-Fuck mee!! May I have the top? She rolled to the side and we easily got her on her back.I stood pulling her to the edge of the bed. I pinned her knees up near her ears and bottomed out with my cock.. I stroked her long and fast, keeping her orgasms. She broke the kiss with my sister and said “will you get over here and fuck us? I could really use a cock about now.”She was definitely quite the aggressor. But, not wanting to refuse the invitation, I gladly joined the party. I decided that I’ve had my sister a lot and would continue to have her for the rest of the weekend. Therefore, I decided to be a gracious host and tend to Ally’s needs. Ally was on top of my sister, so I picked her up, moved my sister over, and laid down on the couch. "What are you doing?" I asked."I'm going to go get a drink" she replied."But, why are you putting your top back on?" I said."Uhm, cause I don't want to be sticking my tits in the bartender's face?" she replied sarcastically. As she started to pull the straps up behind her head, I grabbed her hands."No, don't. Leave it down. Seriously", I said, looking at her earnestly."Are ... are you serious? You really want me going over to the bartender topless?" she replied, eyes wide.I gulped deep, not. A. Mac-something, and I said yes and signed for it, thinking he had said 'McCarthy'. It had to be McCarthy; I was the only one living here, right? Inside the box, I found four individual shrink-wrapped packets with a note. The note said, "Please consume in numerical order", and sure enough, each one was numbered. I threw number one in my lunch bucket for the following day and left the rest on the counter. I should tell you that the contents were all healthy food: nuts, raisins, dates, dried.