Dark Heaven
Only read it up until chp. 65. I really liked it in the beginning and loved their story as children. This is the first time I've read a manga that involved serious topics surrounding religion, rights, etc. (real problems in society, the manga focuses on these topics through-out the whole manga. It's about their relationship, but also more about the turmoil, etc. that surrounds them in both their families and society. In that sense, it's really deep.) I would've kept reading if it was still mostly focused on their relationship, but I ended up getting bored with the drama so I stopped. It's worth the read because it's interesting, but I personally just didn't want to finish it. I would still recommend it since it's different from the typical yaoi and opens up your eyes to a lot of things.
Biting the Tiger
Sequel Spin-off : Around the Tiger
Aitsu No Heart Ni Hi Wo Tsukero!