DDL: http://depositfiles.com/files/kmot9i6f3
If there were a technology to create embryo from two eggs,We can assume that the kid ,scientifically, can be only female.

You don't need technology when you have Yukari...

Base +18, Herp in your Derp +19, Bane13 +24, Techwire +16, Sherlockian +7, janusi +16, Zero Angel +38, aloc1234 +26, 4EverLost +31, soulfire99 +9, yoyo546 +24, Person8 +7, AnonimpersonJR +5, and 1 more...

Gensoukyo and Touhou setting in general is so damn convenient.
Like dream ending, it's so simple yet it can be used to explain every goddamn thing. In porn, Touhou is the real prodigy among all other excuses to have lesbian sex.

Base +9, TerranChengZi +6

Well, that impregnated quickly

Base +5, dying4anime +5, Herp in your Derp +19, Sherlockian +7, janusi +16, Zero Angel +38, lapidibus +13, yoyo546 +24, Person8 +7

Girls getting each other pregnant

A man can dream cant he

Base +8, 4EverLost +31, yoyo546 +24

I thought the end implied that Marie actually lied to Renko and that the baby is a result of some gap youkai abducting and raping her one night, and that she lied because she wanted/needed her help to raise the baby...

Meaning Yukari is half human?

Base +10, Person8 +7

I thought the end was implying Reimu was Renko’s daughter but that works too.

Base +7, TerranChengZi +6