I want to find a few yaoi mangas

I read a few mangas that I forgot the name of and I'll ask here for those.I hope someone can help me!
1.This is a story about a cameraman that one day was asked by a man to film him and his partener having sex.He accepts because the pay is generous and is asked to only film for them.The man who asked was the dominant one and the partener was the submissive.He films them a few times,then is asked by the dominant to let him tie him with rope because he wants to try bondage with his partener.When the dominant was done,his partener came and the cameraman has to film while having the rope tied under his clothes.The submissive thinks the cameraman wants his partener and tries to stop,but in the the dominant one and the cameraman get tigheter and we get a side-story with the submissive one and another boy who is in college,I think.
2.The second story is a one-shot.Two man live togheter and one day the dominant one says to the submissive that he wants to try bindage.The submissive doesn't want to,but he is forced(a little bit) to try it and the dominant one gives him aphrosdiac(that drug that makes him horny,I don't know how to spell it).The submissive likes being tied up,but,plot twist,he didn't take that drug,he took a normal pill.At the end of the story,there is a page with informations(not many)about the bondage fetish.
3.The third and final story is about two cousins,one older than the other.The older one gets his arm broken saving the younger one(I'm not sure)and it takes his arm 2 weeks to heal.He breaks it 2 more times and in that time,the younger cousin helps the older one.They get togheter in the end.The younger one is in high school or collage and the older one is a teaching calligrafy(sorry if I fidn't write it right).
Thank you in advance!Have a great day!