Yeah, it's hard to describe but yeah you can. You do feel the contractions and a different sort of 'friction' when a girl is cumming. It's lovely!
It's hard to miss the contractions of the vagina around your cock. Her breathing changes when it's about to happen, etc.
With my lady there is no way I would not know when she is cuming! Between her tighting up to the point that it feels like she is pushing me out and the fact that she is a squirter it would be hard to know.
Greatly increased lubrication in some cases is all I've noticed. When one is with the strong, or not so strong, silent types, it might be tough to know. BTW, I prefer the more verbal types as it lets me know that I'm doing it right!
For me it depends on the woman. With some, they contract really strongly - with others, they don't seem to have any muscle contractions at all. Often, it's the women with the strong muscles down there that feel me cum, and those who don't have much contractions that don't feel it when I do. Kegels are good for both partners!
Kegels are great. Depends on the woman, I've been able to feel it with most - but some have relatively weak muscles and I haven't been able to feel them. I love the feeling - usually makes me cum quicker or hopefully simultaenously. Cumming together is an awesome feeling
I certainly can feel my wife when she has medium to strong orgasms. Her stronger ones certainly feel amazing and almost always brings me to climax.
Now that I think about it, even in my youth I found that I would bring myself over the edge when masturbating by simulating the woman having a strong orgasm. I use both hands when masturbating and typically my right is on the 'orgasm' spasms just under my tip. Always great stimulation!
With my wife it is easy to tell. She contracts very firmly and usually squirts too. It feels fantastic.
Over the last few days, I had the continuous multiples orgasms including squirting given by a fuck friend. I asked him if he could tell.....he could. I got very tight, nearly pushing his fingers out.