Based on the rule that sex should be on demand, then sex during menstruation should presumably be allowed (only if the woman is aroused).
I sometimes have strong arousal during menstruation.
My guess is that this is the body's call for a hormonal boost to help cleanse the body. After all, menstruation is a process of cleansing the body.
As we already know, the highest quality production and release of hormones occurs with full sexual contact with the opposite sex. Accordingly, we can assume that sex during menstruation is acceptable.
I also had sex 1 or 2 times in my life during my menstruation.
From my experience of having sex during menstruation, I can say that this is not at all the pleasant sensation of sex, as in the absence of menstruation.
What is it expressed in?
1) Poor slipperiness of the vagina.
For comparison: on ordinary days, the sensation of the movement of a penis inside the vagina, like a "piston in oil"; during menstruation, the penis soaked with water, which is quickly absorbed and does not provide slipperiness.
2) There is no feeling of cleanliness.
It's not about social restrictions. Blood during menstruation is the blood with which a mature, but unused egg comes out. That is, roughly speaking, "waste of the body." And, again, roughly speaking, sticking a penis into the "body waste" does not look positive.
Then what to do if there is arousal, but sex is not comfortable?
I resort to self-pleasure without penetrating the vagina. For me it works
I would like to know the opinion of more people who have tried (and who have not tried for some reason) sex during menstruation. Let's exchange experiences and come to some collective conclusion on this matter.