With my arm over her leg, and my fingers at the top of her slit, Robyn and Lucy could see it as Sandra's vaginal entrance opened up with her arousal. They could also see that Sandra's clitoris was fully erect, and that the juices were all but dripping out of her as she got more and more excited. The sight and sound of what Sandra and I were doing was finally enough for Robyn, and her legs snapped shut as she fell into the throes of orgasm – promptly followed by Lucy. As both of them gave quiet voice to the feelings they were having, I could feel Sandra starting to tire above me. Before long, she slowed down, and finally stopped before turning her head to say "Can you do it, now? My legs are getting tired."
I answered her by saying "If you can stand up and lean over, then I can stand up, too."
She understood what I was saying, and nodded her head before wiggling around enough to get her legs stretched out on the outside of mine. Staying joined with her, I held her around her waist, and together, we slid forward until she was able to get her feet on the floor. It took a couple of tries, but we were finally able to stand up – facing the table, and at right angles to where Lucy and Robyn were again taking an interest in what we were doing.
Standing, Sandra leaned forward so that her body was parallel to the floor, sticking her arms out to rest her body against the table while using it to held herself steady. With her in that position, I was easily able to begin moving myself in her – slowly and gently at first, but soon moving in her just as quickly, of not a little faster, than she'd been able to move before. I could see it as her breasts swayed slightly in time with my thrusting, and reached down to take her breasts in my hands, holding them lightly so I could feel the way they moved while I held her nipples between a couple of fingers. A couple of minutes later, she released her hold on the table with one hand, and slid it down between her thighs, so she could play with her clitoris as I continued sliding myself in and out of her. The feeling of her hot insides wrapped around my penis, and the way her breasts moved in my hands soon had me ready to climax. When I managed to gasp out "I'm going to shoot!", her only response was an enthusiastic "Yes! Do it!"
We heard a gasp, and both of us turned to see that Robyn and Lucy were now masturbating themselves as they watched us – and from all appearances, were ready to have another orgasm. Watching the two of them, fingers dancing on their clits, was all I needed – I could feel it as the semen came boiling out of my balls, and with a couple of hard, deep thrusts, poured myself into Sandra's insides. With a cry of "Yes! I can feel it!", Sandra tripped over into her own orgasm. Even as I was hosing her bowels with my sperm, I could hear it as first Lucy, then Robyn, called out their own climaxes, too.
As hard as it was for me, I managed to hold Sandra steady while her orgasm ran through her: with the first spasm, she released her hold on the table, and all but fell forward to the floor. Only by holding her to me tightly was I able to prevent her from getting hurt; even then, it was a struggle. I was greatly relieved when she started to take her weight onto her legs again, and then move to rest her body against the table. With her anus clamped so tightly around my penis, it was taking longer than usual for me to soften; but I finally eased myself back from her, savoring the sensation of her rectum 'milking' the last of my semen from it as the head popped free of her grasp.
I looked over to see that Robyn and Sandra had both recovered from their orgasms; Lucy gestured that I should bring Sandra over there so the two of us could lay down. It seemed like an uncommonly fine idea, and with a little gentle prodding, managed to guide Sandra to the bed, where Robyn helped guide her down while Lucy did the same for me.
I spooned with Sandra's back, while Lucy did the same to me; Robyn opted to lie on her side, facing Sandra as she softly stroked Sandra's side from ribs to hip. After several minutes, we all started to feel a little cool; Sandra and I headed for my bathroom to clean up while Robyn and Lucy did the same in Lucy's.
Sandra fairly purred under my hands as I lathered her up and washed her from head to toe before doing the same for myself. I was careful to pay special attention to where the baby oil had been, so that there wasn't any of it left to cause any discomfort. Once we were out of the shower, I dried her off carefully before she took another towel and did the same to me. Satisfied that we were clean enough, I picked her up and carried her back into Lucy's room, depositing her on the bed before lying down next to her. A couple minutes later, Lucy and Robyn made their appearance, and joined us – Lucy opting to lay next to me, with Robyn next to Sandra.
As we lay there, Lucy whispered in my ear "That was so incredible, watching you two. I could*see* how much she wanted that, and how nervous she was. And you just sat there holding her steady, not moving or doing anything to push her, letting her go at her own pace. You should have seen the expression on her face when you finally slid into her at first – that's what making love is all about.
Then watching as your cock slid into her ass – it got me*so* horny, I thought I was going to turn into a puddle right here on the bed! I could tell when you were coming in her ass, and when she came from it, too; well, that was just too much!"
As Lucy was saying that, we could see that Robyn and Sandra's kissing and touching were becoming more insistent, and more intimate. In short order, Robyn had her lips on Sandra's breast, sucking on its nipple, while her hand was busy in Sandra's crotch. For her part, Sandra was caressing Robyn's breast, and using her thigh to rhythmically press against Robyn's mons. Lucy and I watched as things heated up between them to the point that Robyn started kissing her way down Sandra's body; as she passed Sandra's navel, and moved toward her pubis, we saw Sandra put her hand on Robyn's head, stopping her. Robyn just looked at her and said "Oh, pooh. You just had a shower, so you're as clean as can be. Besides, I'm not going to stick my tongue inside you, or anything – what I want is on the outside!", with a grin.
Sandra hesitated a moment, then took her hand off Robyn's head; Robyn quickly went back to giving Sandra's lower belly soft kisses and small lip-nibbles as she moved even lower to apply her considerable oral talents to Sandra's mons and clitoris.
Lucy whispered to me "I will*never* get tired of watching them – they are just so sexy together!" She reached over to take my penis in her hand. Feeling that I was already starting to get hard at the sight we shared, she murmured to me "Well, I guess it does something for you, too!", with a quiet chuckle.
By this time, Robyn had devoted herself to Sandra's clitoris; we watched as Sandra reached out to tug gently on one of Robyn's legs, then guiding it as Robyn moved to straddle her head, opening herself to Sandra's attentions. Lucy and I carefully eased away from them a little bit, giving them some room, but not distracting or disturbing them in the process.
Knowing each other as they did, it wasn't long at all before each had the other fully aroused before settling themselves in to try and get the other off as powerfully as they could. The room was soon filled with the liquid noises of their oral lovemaking, and the scent of their arousal – the sights and sounds and smells of their activities was more than enough to get Lucy and I excited, too. Lucy moved herself down to take my erection in her mouth, softly sucking on me as she slowly raised on lowered her head; after a few moments, I reached out to draw her a little closer to me. When she felt my touch on her mons, she readily spread her legs for me, so that I could start gently stroking the outside of her vagina and clitoris as we both watched the young women in front of us making love to each other.