Ore no Otouto no Honjitsu no Onedari
Complete | tsumumi | 2000 released
Super Lovers
Ongoing | abe miyuki | 2009 released
Raws (Chinese): http://www.dm5.com/manhua-super-lovers/ Got up to ch42 when they just officially announced to others that they were dating, still haven’t gone further than a finger in the ass. Ren is about not yet 17 I think
Futari No Musuko Ni Nerawarete Imasu
Ongoing | kamon saeko | 2014 released
2018-12-11 23:50 marked
Seems attracted against their will when they were young
Grandson loves his Grandfather too much
Complete | Chrono Nanae | 2014 released
2019-03-17 00:20 marked
Kimijima Kyoudai no Honkai