The optimistic part of me thought that my sister too has fallen for me. Again I thought if that was the case then she wouldn’t have left the room. I...was very confused.After some time, my mom called me for dinner. My sister was missing from the dinner table. When I asked mom, she said that my sister had some work with her friends and will be a little late. I ate my dinner and went to my room.A few moments ago, the best thing happened to me but now I was sad. I blamed myself and it felt like I. The first experience was delightful to us both. I will describe as it occurred. Our friend (Mel) was staying the night at our place. I had presented a possible threesome if my wife wanted it. I told Mel I would call him into the bedroom if my wife agreed. Anyway our friend went to bed around ten in the guest room. K and I had a bath together. K asked me why Mel was staying the night. I told her it was her chance for the threesome that we had discussed. I asked her if she was ready, but she was. How about one more time before you leave?". She froze, dropping her keys onto the mattress. She stammered a little and then looked at her phone. She dropped her stuff onto the mattress and pushed me over onto my bed. She immediately began taking her pants off slowly. She danced rhythmically, swaying her hips out of her Jeans. Her blue panties were almost dripping through with cum. She climbed onto the bed slowly, lying down next to me. Upon settling she lie down with one leg straight and one. He tried it once, but no one else did for fear it might kill the patients." Betty waved her arm, indicating Bret and Malcolm. "However, as you can tell, it has tremendous results." Wait, you experimented on us?" Doug asked, stepping closer though maintaining his distance. The man with him, though, remained by the car. "Isn't that a little ... unethical? I mean, what would happen if you'd been wrong?"Betty turned her hands palms up, cocking her head. "Then they'd both have died. As I said, it.