Looking for a yaoi where a student uke lives in a seme teacher's house for some reason. With light bdsm(?), I remember a scene where the teacher cut open the pants of the student in his house, they also used a vibrator if not mistaken. There seemed to be quite a large age gap as well...
I think it's this one...
http://www.mangago.me/read-manga/oresama_wa_koi_no_dorei/
"What makes you think being by your side still has any value to me" TELL IT TO EM HAYDEN make the chasing arc worth it (/TДT)/