LadySpider, AmyA, Alicia4Ever, thanks for replying. Okay let me summarise my understanding:
So we need to relax and not worry about what type of orgasm, duly noted. I think that's more of an issue for me as I'm always looking to vary things to make it interesting. My Wife does prefer a clitoral orgasm, but I suspect she doesn't really care as long as she has an orgasm. That said she can also have nipplegasms, but she isn't so keen on them as she says they are weaker; it's one of the few times she will speak and ask me to stop stimulating her breats and nipples and move to her clitorus.
It's reassuring to know that others have had similar "rigid" experiences during orgasm, but do you also feel it flicking in and out of pain ? I was concerned when my Wife told me this as that's the last thing I want to happen to her.
I was working my fingers pretty hard against her G-spot as she seemed to be very "positive" to that. Thanks for the advice to slow down and take it easy. I suppose it may have been "excessive" stimulation, but we have no point of reference as my Wife has not really tried to give herself a G-spot orgasm (maybe a few times only) so doesn't really know how her body responds; lso I'm still inexperienced in giving G-spot orgasms.
Thanks also for the advice on having a clitoral orgasm first before a G-spot orgasm. My only problem is that my Wife has not let me give her any subsequent orgasms, I've asked a number of times, indeed even begged, but it's usually been in the "heat of the moment". This "incident" may give me an opportunity outside the bedroom to discuss this option.
One thing I forgot to mention is that last week she had her usual clitoral orgasm after around an hour's worth of foreplay and then we had PIV sex. For a change we did "doggy" style. Afterwards she said it had been uncomfortable as she felt like she wanted to pee and was busy holding it in. Do you think she is getting the strong urge to squirt and her "holding on" may have caused the "pain" at orgasm on Monday ? I'll try to broach that with her. I suspect the idea of squirting may not be that appealing to her anyway even if it does "release" the "pain", but it's worth discussing at least.
The body releases nitric oxide (NO) in the nervous system to cause the orgasmic effect. It's also affects the nervous system and neurotransmission so I guess if the orgasm is very strong it may impact motor control and make the body or limbs "rigid". It's the biochemcial NO pathways that Viagra impacts to improve erections and orgasms. Can you tell I'm a PhD research chemist !
It's really great having this forum to enable people to ask these type of questions.
Thanks again for the help and advice, keep having delicious orgasms.
MS@50