My boyfriend wants constant sex and it's starting to be too much pressure for me. The sex is great and no complaints, but it's back to back some nights and I'm getting too tired. I'm exhausted when get to work and it's starting to show to my coworkers. I tell him I'm tired and he'll say okay but then get a bit persistent until I wind up giving in just so I can get some sleep in hopes he won't wake me up for another round. I know things could be worse with too little sex, but I need some sleep and maybe a small break to recover.