That's insaaaaaane (ノ≧∇≦)ノ
Here I found it. https://myreadingmanga.info/ore-wa-kawaii-otouto-to-eng/
Thank you , but this not what I was looking for, although I'll definitely read it here's the one I was looking for :
https://myreadingmanga.info/ore-wa-kawaii-otouto-to-eng/
ooops sorry i made a mistake, spoke to soon :P gommenasai. it is definitely what I was looking for . Arigatou gosaimasu !!!!!!!!!!!
ლ(´ڡ`ლ) thanks
you're welcome :)
I read this a long time ago. it was a really smutty manga .The seme was super possessive and had a kink?goal to fill his uke with his own semen in every possible way. So once when uke is sleeping/passed out, seme connects both the penises by inserting each end of a tube in both their penises and comes inside uke's urethra.
Thank you very much on advance for helping.