I was trying to remember the name of a yaoi but I don't really have much to go on in ways to refind it? I remember that there was a guy and something happened/he met another guy and (I think) in order to get his phone back from him(or get something back in general), he has to make it an entire day (at work etc) with a vibrator in without coming. I think he ends up doing it (barely) but the other guy tricks him and he ends up losing the challenge 😕
I'm sorry that I don't have much more to go on that this, if anyone knows it or something that sounds similar I'd be beyond grateful~

was it Kichiku, Encount ??

the 2nd chapter of it similar to what you've explain.

[img]http://i67.tinypic.com/2vbook7.png[/img]

Looking at it I think it is ^-^ Thank you~!