Rita offered the bottle to me again. I let her pour some more of the amber liquid into my cupped palms, then applied the liquid to Sylvia's midriff and belly. She squirmed as the oil got to work, stimulating further parts of her torso with ultra-pleasurable sensations. My hands carried on moving southwards. Her brain got there ahead of me and she arched her body with increasing arousal, before relaxing and tilting up her hips better to expose her vulva to my questing hands. I placed a palm on her mons. The oestrogen-suffused mound reacted dramatically to the substance. Her belly and hips shuddered as the liquid took immediate effect. When my oiled fingers touched her labia she shrieked with the thrilling intensity of the warmth on her vulva.
She gently wriggled her hips to cope with the stimulation. She started to moan. I knelt between her spread-wide legs and lavished kisses and suckings on her labial wings. It caused sensational heat on my lips and tongue. I could feel just how effectively it must be working on her tender parts. But I knew this lotion was only a side-show. It was her hormones and her brain that would dictate the outcome of this coupling.
As my tongue moved onto her clitoris, I saw in my peripheral vision Sebastian and Rita lean in and kiss her nipples beyond my head. She let out a louder moan at the opening up of a second front on her body. Her breasts were sensitive to any person's touch, so that would excite her all the more. I teased her vaginal entrance with two fingers as I searched for her sweet spot. She wriggled her hips impatiently for me to speed up my overtures.
A muffled sound made me look up. She was kissing Sebastian who had leant his head over her. She swallowed his tongue with great passion. This was looking good to go.
My erection was once again engorged and ready for action. My cock yearned to be welcomed into her vaginal Paradise. My heart was pounding with my arousal. She let out a whimpering cry then said, "No more playing about, fill me Simon. I'm ready for you."
The final stage of the trial was at hand. I realised that I had been postponing this seminal moment of truth or tragedy. Either I would propel her body to new heights of ecstasy, or all our efforts would have been wasted. My own self-control would now be tested by full-on physical stimulation in just about the most perfectly exquisite body I could imagine. Ruby and Rita moved back to give me room. I felt their eyes on my back as I positioned my cock at Sylvia's deep pink lips. I imagined Ruby's camera-eye view from below the table glass. It thrilled my imagination.
My cock felt resistance at the vestibule to her love channel. It slipped past the first hurdle to be assailed by her automatically flexed vaginal muscles, which seized my shaft in what felt like a vice-like grip. It could have been my imagination of course, or her tormented mind constricting her muscles. That made my heart pound with excitement tinged with anxiety.
I pushed through her unwitting resistance and pressed my shaft home to the neck of her cervix. Her lower body started to curl up at the exquisite sensations washing around below her abdomen. I began to thrust and withdraw, as controlled and economical with my hip movements as I could manage. I did not want to trigger an unstoppable premature orgasm of my own before Sylvia had the chance to scale her own heights of pleasure. She moaned at each thrust, urging me to go harder, faster. I had to trust to her judgement. I did, slamming my pubic bone against hers at the end of each descent thrust. She liked that and shimmied her hips in response.
Wonderfully warm sensations were flooding my belly.
"That feels so good," she whispered. "Massage my love channel with that thick cock. Propel me up that steep slope, Simon. Push my being over the precipice."
She ran out of inspiration at that point, and gasps took over.
I wondered how often she might have rehearsed such grand words in her fantasies.
Then her body seemed to change gear. Our movements synchronised, with me pushing downwards on her clit, and she pushing her hips up to meet mine on the way down. Our groins clashed, increasing the intensity of the pounding against her clit. She expelled her breath in enforced exhalations at every collision of our hips. Her hands gripped my arms with an urgency that warned of something developing inside her.
"Think of Marshi," I whispered," helping you to reach that climax on her back. She showed you the way. Show me now what you can do."
"Yes," she whimpered. "I want to, very much. Help me..."
Her moans had turned to gasps and they now increased in cadence as her body's nerve endings stoked up on testosterone. I could sense a change. I imagined every pore in her flesh pointing upwards towards me in an exhortation for me to press harder. I refused to be outwitted into shooting my sperm prematurely inside her before she had a chance to climax. My mind slipped back to that evening in her bedroom when she urged me to masturbate her clit until my wrist lost all sense of feeling. I dragged my mind back to the present and what her body was telling me, whilst I refused to let my image of it stimulate me over the top. It would be so easy to allow a sight of her lovely body beneath me to seduce me into relaxing my self-control. Mind over matter, science over passion, I held back my spermal forces, even though they brimmed against my mental dam.
"Yes," she was saying to herself, urging her body, "yes, you can do it; come on, do it. I believe in you. Don't let me down."
It was beginning to sound more a like a forlorn whimper than a concerted urging. Were her body and her mind losing the battle?
"Yes, you can do it," I urged. "Come on Sylvia, show me how you can master your body. Relax your barriers and let your hormones do their work. Do it for me - for all of us."
"Ummm," she whimpered, "I want it, I'm doing, ah! I'm - I'm - coming, I'm coming."
As she repeated that mantra, her voice got stronger, more confident, assertive.
"Yes, I'm coming, it's coming. Come with me, Simon. I want your sperm. I - I ah, ah, ah ..."
Her voice turned into a whine as her vocal chords flew off the scale with heightened sexual tension. Then her body arched, her hips thrust upwards. She held her breath, her mouth fell open in a soundless cry. She gave an almighty gasp and let out a guttural moan as her first penis-inspired orgasm swept through her body. "Ohhhhhh," she cried out as if in pain of childbirth, then, "Oh yes, oh yes, oh yesss!" It might have been forced, but it was the relief of ecstasy making itself felt.
Then waves of orgasms flooded her abdomen, sending hot flushes up her torso to dissipate around her neck and shoulders. She pumped her hips up in a desperate bid to lengthen her abdominal pulses. "Oh, that's so good," she muttered breathily. "That's it! I'm coming again, and again."
She was laughing then at the euphoria of release of sexual tension, worry, and fear. Her body relaxed, her hormonal energy spent, and she slumped back against the cushion of the footstool. She opened her eyes wide and raised her head, staring up at me. I tried not to return her stare, concentrating still on holding back my dam.
"You've got to come too," she insisted. Make love to me. Show me how much you want me."
I was suddenly afraid to let go. I had been so used for so long to failing her that I had built my own dam of self-control, indefinitely to prolong my attempts. It had become a habit. I knew all at once what she had been going through, though not why. That was it. With that revelation, my mind released its mental barrier, and my body resumed its pumping of her loins. All the latent sensations that had been massing behind my pubic bones were now released and my own rapid ascent to my climax began. It was a joy to pump freely knowing that Sylvia had orgasmed and could now enjoy my journey towards my climax, my release of love juices inside her. Within seconds a warmth at the neck of my penis signalled my own impending hormonal crescendo, and ultimate release.
"I'm going to come. Is there more in your tank?"
She chuckled. "There's always going to be more for you."
Then she gasped as her revitalised, natural instincts kicked in. "Can I come again, together with you?" she asked.