"well... this is so awkward to explain to someone." Kevin said. "But when two men make love the sperm that enters his anus can find its way to a closed area seperating his uterus and slip through the edges of the seal of it. Once inside the sperm from the first man fertilized a specialized form of sperm that sticks to the uterine wall and usually is produced one at a time. After nine months of pregnancy the man gives birth through his ass."
"That is different". Jon said. But in a way Jon was glad. It would be such a let down if men in the all male world had or grew a vagina to give birth. That would ruin the whole male pregnancy thing if they became women to give birth.
Jon eyed his clothes and then Karyn's. "why are you wearing clothes similar to how women on my world wear but I am not."
"Well....", Karyn said, "Some men act more soft and emotional and are drawn to different clothes styles and interests from other guys. Not to stereotype myself but I love soap operas and few of the hard macho types do. Most of the more macho guys love the softer acting type but not all of them. Toughs can pair with toughs and softs can pair with softs. All you need is two men for pregnancy to occur. I heard of a few times where men paired up with men not their type due to drunken sexual encounters. That could be awkward. Especially if each wants the other to be in a softer role. Thankfully most either grow to accept each other or compromise."