First of all all, it's yaoi. And there is the big guy who appears to be mean but he is actually really kind. And the other one is kinda short, slender, but always ready to fight and with a big mouth. The big guy falls in love with the other one, but the small one teases him and smacks him. One moment from the manga I do remember is ... the big guy notices a leaf on the other one's back and he rushes to take it off, but the small one sees him and thinks he is going to hit him, saying something like "so he finally snapped" to himself. Also the are in school cause they had uniforms.
So can anyone help ? ^^

[img]http://i197.photobucket.com/albums/aa290/childish_crazy_girl/aaa1_zps698288a4.jpg[/img]

I think you will have better chance getting answer at yaoi/yuri forum.
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So... no one knows this one ? 🙁

[img]http://i197.photobucket.com/albums/aa290/childish_crazy_girl/aaa1_zps698288a4.jpg[/img]

Dog style?