https://www.doujinshi.org/book/87534/
https://www.suruga-ya.jp/product/detail/ZHOA22153

In other Akahira Kirin doujinshis, 美 has always been transladed as "Bi", but I should mention that, in page 5, the author uses the English title "COCOON Vol. 6".

It's possible that the other stories are parodies, but, if so, I don't recognize them. The Macross 7 material is at pages 39-49. The story features the "Flower Girl", that is always trying to deliver flowers to Nekki Basara in Macross 7. See http://macross.wikia.com/wiki/Flower_Girl for more info.

Some sources for the pin-ups in the end:

59: G Gundam (Allenby Beardsley)
60: Magic Knight Rayeart (Hikaru and Mokona)
61: Key, the Metal Idol
62: G Gundam (Master Asia)
63: Samurai Spirits (Nakoruru)
65: Key, the Metal Idol (Key)

Flower girl finally got what she really wanted.

Base +8

05-25 should be original (Cocoon being the title of that original series)
27-37 *could* be from Dokyuusei 2

Base +61