I believe because there is no man involved. So you can enjoy seeing women in the sexual act without having to see another man.
There are many factors. I believe it is because you will powerful sleeping with multiple women. Like you are successful/good looking enough to sleep with 2 women at the same time.
Also, some men may feel inferior looking at other men having sex, depending on self steem, etc.
There is a thing called "Futanari". Women with penises. You can enjoy penetration without looking at a mans ass.
They do not exist IRL though. Do not confuse them with shemales.
There are many factors. I believe it is because you will powerful sleeping with multiple women. Like you are successful/good looking enough to sleep with 2 women at the same time.
Also, some men may feel inferior looking at other men having sex, depending on self steem, etc.
There is a thing called "Futanari". Women with penises. You can enjoy penetration without looking at a mans ass.
They do not exist IRL though. Do not confuse them with shemales.