In the near future, we can produce offspring by men only, with "Artificial uterus". I believe so.

############Sorry, Scat Play is impossible for me.############ ###1)We can try to have a baby, in near future…### Humans need sperm and eggs to make children. In order for two men to make a baby, the technology to make an egg from a man’s body is necessary. I believe this will be possible in the near future for military reasons. In 2018, oocytes were made from human iPS cells. If an oocyte can grow into an egg, a surrogate birth will allow a male couple to create a baby. Furthermore, if the artificial uterus is completed, surrogacy will not be necessary. The future of men and men making children is no longer a daydream. The research that a man and a man make a child cannot be stopped. Because this is a military technology. If we make an iPS cell from the body of a strong soldier and make an egg from that iPS cell, we can give birth to a strong soldier by fertilizing the sperm of another strong soldier to that egg. Similarly, a wise child can be created by creating an egg produced by a wise man and fertilizing the ovum with the sperm of another wise man. This is absolutely necessary in the reality of the competition between countries to increase their national strength. Therefore, I consider “technology for men and men to make children” to be a technology necessary for military purposes. Nowadays we need men and women to make children, but the relationship between men and women is very difficult. If men and men could directly have children, this would greatly contribute to the strengthening of national power. Therefore, I believe that the future where men and men can have children is near. I think the progress of science and technology is really wonderful. ================================================== ###■2)Men can inject his own DNA into other men directly by semen with bareback sex. (with a low probability)### This is known "microchimerism". When a woman becomes pregnant, fetal cells are mixed into the mother's womb and cell coexistence occurs. When the fetus is male, cells carrying the male gene coexist in the mother. However, male genes can also be found in women who have never been pregnant. ■「Male microchimerism in women without sons: Quantitative assessment and correlation with pregnancy history」 「https://www.amjmed.com/article/S0002-9343%2805%2900270-6/abstract」 This allows us to speculate (with a low probability) that the genes of a man who had sex in the past with semen remain in the woman's body. There seems to be no research on microchimerism in male-to-male sex, but I believe that microchim erism phenomena occur with a low probability, similar to male-female sex.(Caution! I do not recommend bareback sex. I recommend safer sex as much as possible. But...Ahh....I want to MANSEED, I WANT MALE"DNA" INTO MY BOWEL...I WANT TO BE INJECTED OTHER MEN'S DNA INTO MY BODY...! And I WANT LIVE WITH OTHER MEN'S DNA IN MY BODY BY MICROCHIMERISM...!)