I just finished reading A Basic Guidebook to BDSM and My Sadistic Master, absolutely love both of them :0 I'm very interested in more stories revolving around it now ueueueue
Have you read this one?
https://www.mangago.me/read-manga/ang_ang/

I don't remember much of it ugh but I reckon they met in the military, and ended up working in 2 different companies (?) I think the seme was younger, and he was a total freak in bed too. Quite the contrary of his usual composed self. The only scene I vividly remember is that they sort of had phone sx, as the uke finished his phone ran out of battery and died,,
Ugh misclicked the follow button. Anyways, is it sugar trap?
Sugar trap fs