If u use condoms with lube on them could be allergic to them and causingb reactions on ur skin and in his privates,, try using none latex or if it starts hurting when he pees it might b a good idea to get checked for a std.
Hello, oily urine is sometimes do to diabetes, does your boyfriend have diabetes? He could be loosing ketones through his urine causing this problem. Some people also have oily urine when they began a low carb diet, I would make sure he's eating good still.
Your breaking out could be as simple as if you are dieting or changing your normal. I would change my sheets daily and wash with a body scrub to see if its because of my diet or have you changed your laundry detergent if its to harsh for your skin it could break you out in general.
that is not normal for your boyfriend he needs to get that checked out I could under stand pre oils when he wants to have sex not that's normal but films no not good at all and if you have had sex with him while he has had the oily films the bumps might be something get it checked