I was momentarily surprised when I felt a hand wrap itself around my manhood – both of Helens were in plain view. Then I remembered Sarah, and looked down to see that she'd managed to roll over onto her side, and was holding me steady in preparation for her mother.
Helen must have known what the youngster was doing, because she leaned forward to put her hands on my chest to steady herself before lifting her hips. Sarah quickly got me positioned against Helens opening, and held me there as Helen started impaling herself on my manhood.
Once Helen had gotten me started inside her, Sarah released me and moved her hand away. As her mother settled lower and lower onto me, I heard Sarah softly comment "God, that is so sexy to watch!"
Helen must have heard her, because she replied "And it's damn sexy to feel, too, as you well know!" – drawing a soft, short laugh. Once she'd settled herself onto me completely, Helen announced to nobody in particular "Damn, this is nice. Toys are okay, but there's not substitute for a real, live man!"
After sitting up again – and getting another fraction of an inch of my cock inside as a result – Helen looked down at me and said "Give me a minute, will you? You're not any bigger than anything we've got, but it's somehow… different with you. I want to get used to it – and enjoy it."
I just smiled up at her and nodded, then eased my hands from her thighs up along her body to her breasts, so that I could cup them and softly tease her nipples with my thumbs. As I was keeping myself entertained that way, Helen simply sat there with her eyes closed. Perhaps a minute or so went by before she opened her eyes again, and started making a few tentative movements with her hips – apparently reacquainting herself with how to move when there was a real, live man beneath her.
She got the hang of it quickly enough, though, and it wasn't long before she started raising and lowering herself above me. She was nearly as tight inside as Sarah had been, as well as just as wet and warm. If I'd had to judge solely by the feeling of how they felt on my penis, I'd have had a damn hard time identifying which was which.
Helen seemed to like what I was doing with her breasts, and leaned forward again, supporting her torso by putting her hands on the bed – which left me with plenty of room to manhandle her mammaries while she started bouncing herself up and down on my cock. In fact, I had enough space that I was able to lift my head far enough to begin sucking on her nipples; and when she let me know it was okay, gently biting and 'chewing' on them, too. When I started doing that, I could feel her getting even wetter inside as she became even more 'enthusiastic' about sliding herself on and off my pole.
Helens breasts were swaying slightly in sympathetic reaction to the motions of her hips and pelvis; but not so much that I couldn't keep her nipples between my lips, or change from one breast to the other. That gave me the freedom to use my hands to re-explore the rest of her amazing body.
After delighting in the feel of the rest of her body, my hands finally settled on squeezing and caressing her incredible ass. Each time she arched herself down onto my cock again, I could feel the muscles under my hands clenching under the warm smoothness of her skin. Helen had started her own version of the body-tensing thing that Sarah had demonstrated, and I knew that she was moving toward her first climax since she'd climbed on top of me. Remembering what she'd said about not 'pushing' them, and what I'd replied about not knowing what their limits were, I decided to do a little experimenting.
By reaching around her a little farther, I was able to slip the end of one of my fingers through the oils that overflowed from where we were joined. With it suitably lubricated, I them ran it up the crack of her ass – and particularly across her anus. The reaction I got from that little test was considerably different than anything I'd expected.
I'd thought that if Helen didn't like it, she'd simply tell me not to do it again; if she did like it, the most I anticipated was some small noise letting me know it was okay to continue.
What I got was a near-scream of "Ohgodyes!"
Getting that kind of response from her, I didn't delay in repeating what I'd just done – with the addition of pressing a little harder against her rectum. She let me know, rather enthusiastically, that she welcomed my second effort, as well. That was all I needed, and I began transferring as much of her lubrication as I could to the pucker of her anus and carefully applying it not only to the outside surfaces, but working it into her opening as well.
While I was engaged in that little task, Helens passion and arousal steadily increased along with the frequency and intensity of the spasms coursing through her. An idea came into my mind, and I quickly went about preparing to put it into action.
So I was completely ready when Helens body finally froze over me as her body tensed with the start of her climax. After the first wave of release washed through her and her body relaxed slightly, I quickly slid my well-wetted middle finger through her back opening and tried to bury it in her as far as I could.
Her reaction was immediate, and extreme: she threw her head back, the tendons of her neck standing out like steel cables in a (thankfully) silent scream of pleasure while her entire body froze in place. That included the muscles of her vagina, which suddenly tightened her so much that I was almost afraid they would force my erect cock out of the warm confines of her womanhood.
She stayed like that for several long seconds before she went through a series of intense spasms that were duplicated around my erection. It was the most amazing thing I'd ever been privileged to witness and experience up until then; and I've never been involved in anything quite like it since.
When it was over, Helen nearly collapsed on top of me; and when I carefully extracted my finger from her nether regions, her body spasmed yet again in response.
I wrapped my arms around her and held her limp form as she panted into my chest. Down toward my feet, I heard Sarah solemnly announce "I've never seen Mother cum that hard! I could see that she liked it, and everything; and I could hear what she said when you started touching her… there, but I didn't think anything like that would happen to her!"
Directing my voice in the general direction of Sarah, I answered "Honestly, I didn't either. I mean, hell, I was surprised when she reacted the way she did when I just touched her there the first time. Do you think she's going to be okay?"
I heard Sarah's soft laugh before she replied "Oh, yeah, I think so, even though that was the hardest I've ever seen her cum. Usually, after she has a really good one, it takes her a while to recover, though. I think it's going to be even longer after that! Why? Are you uncomfortable, or is she too heavy or something?"
"No, I'm not uncomfortable, and she's certainly not too heavy. Matter of fact, it's kind of nice just holding her like this. I just wanted to make sure that everything is going to be all right."
Just then, Helen managed to whisper "Damn you, Jim! Yes, I'll be okay – after my heart quits beating like a jackhammer and my muscles stop feeling like they're made out of rubber bands. There I was having a very nice orgasm, thank you very much, when you went and stuck your damn finger up my ass and tried to kill me with a climax!"
I heard Sarah's soft snicker as I gently hugged Helen before telling her "I really wasn't trying to kill you – honest. You just seemed to like what I was doing, so I figured you might like that, too."
"No, I know you weren't trying to kill me, dear Jim. And I'm really not upset with you about it – ANY of it. Yes, I did like it, as you say. It's just that I've always been sensitive there; even more so when I'm with someone, and what you did caught me by surprise. It felt damn good, but it was a surprise, none the less. You're being a perfect dear to hold me like this, and be worried about me and that you'd somehow done something wrong – you most certainly didn't. But I have to warn you that it's going to be a little bit before I'm ready to have another try with you!"