About 2 minutes later she came out again and this time she called my name in a quite voice which I pretended not to hear. She called my name about 5 times. Reassured that I was asleep she ran into her room and quickly came back out. She came close to me and put her nose close to my dick and took a deep breath. She than sat back on the coffee table that was directly in front of the sofa and undid her robe and began to play with herself. She brought out a black dildo and soon began pushing its full length inside her cunt. She started to cautiously caress my dick with her fingers, being cautious so to not wake me.
My dick started to react but I pretended to be asleep. Soon my dick was super hard and I felt that she surely knew I was awake. I wanted to keep pretending I was asleep, under the effects of the pills she gave me, so I began pretending I was having a dream and begun talking about my ex-girlfriend. I made my sister think that I was having a dream about fucking my ex. She must have fallen for it or did not care because she started giving herself more liberty and soon put her lips on my dick. I could see that she was still pumping her dildo into her cunt. Her lips were only placed on my dick; she must not have wanted to wake me up by giving me a blowjob or by fucking me. Just watching her fuck her self and feeling her lips on my dick were sending a sensation through my body that I did not know was possible.
I began to move around a bit anxious to have her give me a blowjob but she only kept her lips on my dick and occasionally licked the head a bit. She must have thought that I was fucking in my dreams from the way I was moving my hips. I reached a point that I could not hold it any longer. I exploded and watched as the first half of my cum sprayed my sister's unsuspecting face and how she quickly adjusted to take the second half into her mount. At the same time I saw her hips buckle and she let out a soft moan and I knew she had also cum. She quickly got up and ran into her room. All the feelings of guilt for raping my sister the night before quickly banished and a new plan crept into my headβ¦