Hi can someone recommend me some short yaoi manga like has 5 chapters. Thank you very much...

Kawaii akuma

I have a lot but try Dear Signal and Kajitsu

Omega wa Pink no Yume wo Miru (Yaoi)
and
I'm Banging My Rival From A Parallel World!? (Yaoi

http://www.mangago.me/read-manga/tasogare_outfocus/
Its 7 chapters

Some completed quick reads:
http://www.mangago.me/home/mangalist/1000106/

It’s organized by how many chapters there are so you can pick what you’d like!

http://www.mangago.me/read-manga/golden_sparkle/
http://www.mangago.me/read-manga/the_lazy_son_and_his_naughty_secretary/