Hello there :-)
...So, the father had ED, but then fell for his sons friend and suddenly he could get erect again, tough, he can also get erect, when the neighbor, who pretty much fell for the father, teases his ...back XD I hope someone knows the name..., thanks in advance! 🤣

Just so you know all yaoi/yuri related post go to the yaoi/Yuri section of the forums.
(this will get moved later, don't remake the thread there. I also suggest reading all the forum rules and FAQ).

Is it Tenshi no Uta (NISHIDA Higashi) ?
If not you can check the Impotency tag.

Yes yes, I know I make longwinded comments, but that's just me >.<
I should proof read my comments more, but I won't...
So keep in mind I'm filled with typos

Check out FAQ and Forum Rules if you haven't yet.
For errors linking in threads

Thank you... I haven't posted anything for some time and wasn't sure... Sorryly it isn't, but think I'll find it at that tag! XD I'm from Germany and forgot how it was called ... 🙄 I mean, the other word for ED.

I've found it! Deki no ii kiss, warui kiss! Thanks! XD