Only my face would be visible, and probably not even that. Knowing that they wouldn’t know, I unzipped. This time I let my pants and shorts fall all...the way down to my ankles. My cock was rock hard, and I began to stroke it slowly. I needed to be careful not to come (she would taste it if she blew me later), but it felt wonderful to be able to play with myself as I watched.Outside on the patio Annie was now flat on her back with the guy thrusting merrily away between her legs. Her earlier oral. Which purpose was stronger: my biological purpose to orgasm and potentially create an genetic heir, or my higher purpose to not orgasm and complete the experiment? Biology had come like a thief in the night while my rational brain was out, but I jumped at the first excuse to call it quits. Was my a****l instinct more powerful than my human will?Difficult Rating: 0Day 11I masturbated again. The experiment was definitely over.Difficulty Rating: 0Conclusion: 9 daysIn the end, I managed to not. So, now he gradually tried to pull his sleeping wife on her side, towards or facing the guest. And somehow his effort worked out. Now Tuli’s face came too closer to that of the guest who was sleeping agape. Due to this positional change, the guest’s hand was now away from Tuli’s bosom. So, now Arindam tried carefully to push the agape sleeping guest further towards his sleeping wife Tuli in such way that a breast-tip automatically entered the guest’s agape or open mouth.. . . And setting them. She disappeared through the crowd in the direction of the ladies toilets. After about ten minutes, I saw her coming back towards me. "I can't believe you just came inside me!" she said. I apologised and said I just got carried away. I asked if she was on the pill. "I wouldn't have let you inside me without a condom if I wasn't" she said. "It's just you made such a mess, and it's still running out of me!" I hadn't masturbated since about a week ago and felt that I'd cum inside her quite a lot. I.