Most of these stories are teen boys with teen boys. The exception is story #2 this is an older teen (at least) with what looks to me like a pre-adolescent boy.

1) The Letter From Canada
2) Love Is Pure, Desire Is Maternal Affection!?
3) Like Or Love
4) Be Honest…

From Fushichou:

Around the time that Hinaki Mitsura climbed his way to number two host in the club, Tsukayama Satoshi transfers from a branch store. He was Mitsura’s senior in high school, and also the cause of Mitsura’s most devastating memory. Tsukayama proceeds to take over as top host, surpassing Mitsura and the man he has been living with, Miura-san. Miura-san is kind, gentle, and wants to protect and love Mitsura. But Mitsura’s heart is closed, that is until Tsukayama starts to work his way under Mitsura’s skin. His growing attraction to the arrogant one who caused a deep scar under the full moon is a source of confusion and suffering, and he begins to question everything he is - everything he has worked to become. This love story vividly depicts the human drama among hosts, under the blurry moon.

Stahn Aileron was just a simple country-boy who left in search of adventure. While a stowaway on a transport that got taken down by monsters, he found the sentient sword Dymlos, a relic of an ancient war. Now he's stuck with Rutee, a brazen bounty-hunter, Mary, a kind-hearted warrior, Philia, a naive priestess, and the stuck-up Leon as they pursue enemies who have stolen an object with the power to destroy the world! Based on the game by Namco!