anyone knows the name of these yaoi?

1.[url]http://25.media.tumblr.com/272f96098dc5077d6842ee433fc6ed30/tumblr_mgid6ehBKh1s00diro1_500.jpg[/url]

2.[url]http://24.media.tumblr.com/tumblr_meco7zUVCm1rlqmfto1_500.jpg[/url] I know I read this one before but dont remember the title. I think it's about this guy who needs cash for hospital fees for his lil bro so he tries to sell his body and his 2 pals start preparing him for the auction.

3.[url]http://25.media.tumblr.com/7ed29815a760d1881f9ed2f6486b95d6/tumblr_mh9auv6Soi1rzkby7o1_500.jpg[/url]

4.[url]http://25.media.tumblr.com/tumblr_matj29IzRw1r0e128o1_500.png[/url]

5.[url]http://25.media.tumblr.com/tumblr_md15n8MEO91ryxq99o2_400.png[/url]

thanks

btw never mind the first 2, I remembered, it's Kinbaku and Pet Keiyaku by Zaria

EDIT 4. Bachi Bachi (Kijima Hyougo), oops, sorry, I re-read Bachi Bachi and that image is actually from another manga by the same mangaka: Love Mission @, 2nd chapter.
5. Jungle King

@dalek Thanks allot!!!!!!

3. Hibi Koikoi

1 Kinbaku by zaira
2 pet keiyaku by zaria