Hi, well the manga I am looking for is about a couple where the seme's older brother tries to hit on the uke and kisses him. The uke let's him only because he reminded him of the seem. Later on when their having sex the older brother and his own uke see them and have sex as well. Then, blah blah, the ukes then take revenge on the semes for not stopping when being caught during sex. They then pretend to have sex with each other to make the semes jealous I think. But it like backfires, and yeah... 😉 🤨

Maybe Glamorous Boyfriend? The part about two ukes having fake sex reminds me of it...