HELP PLEASEE

i'm looking for a yaoi manga and i only know bits of it.
so, i remember the uke brought an AV to school and the seme saw it and they watched it together and they started to be masturbating buddies. one day, the seme said he can't go to uke's house since he's got an errand to do for his mom but when he heard that another classmate is going he panicked that uke would be doing it with the other classmate and so he went with them.

I thinkit was a one shot though, i don't know
if it rang a bell please help me out. (づ￣ ³￣)づ